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Heredity

Index Heredity

Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents. [1]

Table of Contents

  1. 120 relations: Aeschylus, Albinism, Allele, Allele frequency, Alpheus Hyatt, Antonie van Leeuwenhoek, Aristotle, Asexual reproduction, August Weismann, Autosome, Base pair, Biology, Biometrics, Blending inheritance, Canalisation (genetics), Cell (biology), Cell theory, Charles Darwin, Chromatin, Chromosomal crossover, Chromosome, Classical antiquity, Cryptorchidism, Developmental plasticity, DNA, DNA methylation, Dominance (genetics), Dual inheritance theory, Ehlers–Danlos syndrome, Enzyme, Epigenetics, Epistasis, Evolution, Evolutionary developmental biology, Expressivity (genetics), Extranuclear inheritance, Eye color, Fragile X syndrome, Francis Galton, Gavin de Beer, Gene, Genetic drift, Genetics, Genome, Genomic imprinting, Genotype, Gregor Mendel, Group selection, Haemophilia, Hard inheritance, ... Expand index (70 more) »

Aeschylus

Aeschylus (Αἰσχύλος; /524 – /455 BC) was an ancient Greek tragedian often described as the father of tragedy.

See Heredity and Aeschylus

Albinism

Albinism is the congenital absence of melanin in an animal or plant resulting in white hair, feathers, scales and skin and reddish pink or blue eyes.

See Heredity and Albinism

Allele

An allele, or allelomorph, is a variant of the sequence of nucleotides at a particular location, or locus, on a DNA molecule.

See Heredity and Allele

Allele frequency

Allele frequency, or gene frequency, is the relative frequency of an allele (variant of a gene) at a particular locus in a population, expressed as a fraction or percentage.

See Heredity and Allele frequency

Alpheus Hyatt

Alpheus Hyatt (April 5, 1838 – January 15, 1902) was an American zoologist and palaeontologist.

See Heredity and Alpheus Hyatt

Antonie van Leeuwenhoek

Antonie Philips van Leeuwenhoek (24 October 1632 – 26 August 1723) was a Dutch microbiologist and microscopist in the Golden Age of Dutch science and technology.

See Heredity and Antonie van Leeuwenhoek

Aristotle

Aristotle (Ἀριστοτέλης Aristotélēs; 384–322 BC) was an Ancient Greek philosopher and polymath.

See Heredity and Aristotle

Asexual reproduction

Asexual reproduction is a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.

See Heredity and Asexual reproduction

August Weismann

August Friedrich Leopold Weismann FRS (For), HonFRSE, LLD (17 January 18345 November 1914) was a German evolutionary biologist.

See Heredity and August Weismann

Autosome

An autosome is any chromosome that is not a sex chromosome.

See Heredity and Autosome

Base pair

A base pair (bp) is a fundamental unit of double-stranded nucleic acids consisting of two nucleobases bound to each other by hydrogen bonds.

See Heredity and Base pair

Biology

Biology is the scientific study of life.

See Heredity and Biology

Biometrics

Biometrics are body measurements and calculations related to human characteristics and features.

See Heredity and Biometrics

Blending inheritance

Blending inheritance is an obsolete theory in biology from the 19th century.

See Heredity and Blending inheritance

Canalisation (genetics)

Canalisation is a measure of the ability of a population to produce the same phenotype regardless of variability of its environment or genotype.

See Heredity and Canalisation (genetics)

Cell (biology)

The cell is the basic structural and functional unit of all forms of life.

See Heredity and Cell (biology)

Cell theory

In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.

See Heredity and Cell theory

Charles Darwin

Charles Robert Darwin (12 February 1809 – 19 April 1882) was an English naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology.

See Heredity and Charles Darwin

Chromatin

Chromatin is a complex of DNA and protein found in eukaryotic cells.

See Heredity and Chromatin

Chromosomal crossover

Chromosomal crossover, or crossing over, is the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids that results in recombinant chromosomes.

See Heredity and Chromosomal crossover

Chromosome

A chromosome is a package of DNA with part or all of the genetic material of an organism.

See Heredity and Chromosome

Classical antiquity

Classical antiquity, also known as the classical era, classical period, classical age, or simply antiquity, is the period of cultural European history between the 8th century BC and the 5th century AD comprising the interwoven civilizations of ancient Greece and ancient Rome known together as the Greco-Roman world, centered on the Mediterranean Basin.

See Heredity and Classical antiquity

Cryptorchidism

Cryptorchidism, also known as undescended testis, is the failure of one or both testes to descend into the scrotum.

See Heredity and Cryptorchidism

Developmental plasticity

Developmental plasticity is a general term referring to changes in neural connections during development as a result of environmental interactions as well as neural changes induced by learning.

See Heredity and Developmental plasticity

DNA

Deoxyribonucleic acid (DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix.

See Heredity and DNA

DNA methylation

DNA methylation is a biological process by which methyl groups are added to the DNA molecule.

See Heredity and DNA methylation

Dominance (genetics)

In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome.

See Heredity and Dominance (genetics)

Dual inheritance theory

Dual inheritance theory (DIT), also known as gene–culture coevolution or biocultural evolution, was developed in the 1960s through early 1980s to explain how human behavior is a product of two different and interacting evolutionary processes: genetic evolution and cultural evolution.

See Heredity and Dual inheritance theory

Ehlers–Danlos syndrome

Ehlers–Danlos syndromes (EDS) are a group of 13 genetic connective-tissue disorders.

See Heredity and Ehlers–Danlos syndrome

Enzyme

Enzymes are proteins that act as biological catalysts by accelerating chemical reactions.

See Heredity and Enzyme

Epigenetics

In biology, epigenetics is the study of heritable traits, or a stable change of cell function, that happen without changes to the DNA sequence. Heredity and epigenetics are genetics.

See Heredity and Epigenetics

Epistasis

Epistasis is a phenomenon in genetics in which the effect of a gene mutation is dependent on the presence or absence of mutations in one or more other genes, respectively termed modifier genes.

See Heredity and Epistasis

Evolution

Evolution is the change in the heritable characteristics of biological populations over successive generations.

See Heredity and Evolution

Evolutionary developmental biology

Evolutionary developmental biology (informally, evo-devo) is a field of biological research that compares the developmental processes of different organisms to infer how developmental processes evolved.

See Heredity and Evolutionary developmental biology

Expressivity (genetics)

In genetics, expressivity is the degree to which a phenotype is expressed by individuals having a particular genotype.

See Heredity and Expressivity (genetics)

Extranuclear inheritance

Extranuclear inheritance or cytoplasmic inheritance is the transmission of genes that occur outside the nucleus. Heredity and Extranuclear inheritance are genetics.

See Heredity and Extranuclear inheritance

Eye color

Eye color is a polygenic phenotypic trait determined by two factors: the pigmentation of the eye's iris and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.

See Heredity and Eye color

Fragile X syndrome

Fragile X syndrome (FXS) is a genetic disorder characterized by mild-to-moderate intellectual disability.

See Heredity and Fragile X syndrome

Francis Galton

Sir Francis Galton (16 February 1822 – 17 January 1911) was a British polymath and the originator of the behavioral genetics movement during the Victorian era.

See Heredity and Francis Galton

Gavin de Beer

Sir Gavin Rylands de Beer (1 November 1899 – 21 June 1972) was a British evolutionary embryologist, known for his work on heterochrony as recorded in his 1930 book Embryos and Ancestors.

See Heredity and Gavin de Beer

Gene

In biology, the word gene has two meanings.

See Heredity and Gene

Genetic drift

Genetic drift, also known as random genetic drift, allelic drift or the Wright effect, refers to random fluctuations in the frequency of an existing gene variant (allele) in a population.

See Heredity and Genetic drift

Genetics

Genetics is the study of genes, genetic variation, and heredity in organisms.

See Heredity and Genetics

Genome

In the fields of molecular biology and genetics, a genome is all the genetic information of an organism.

See Heredity and Genome

Genomic imprinting

Genomic imprinting is an epigenetic phenomenon that causes genes to be expressed or not, depending on whether they are inherited from the female or male parent.

See Heredity and Genomic imprinting

Genotype

The genotype of an organism is its complete set of genetic material. Heredity and genotype are genetics.

See Heredity and Genotype

Gregor Mendel

Gregor Johann Mendel OSA (Řehoř Jan Mendel; 20 July 1822 – 6 January 1884) was an Austrian-Czech biologist, meteorologist, mathematician, Augustinian friar and abbot of St. Thomas' Abbey in Brno (Brünn), Margraviate of Moravia.

See Heredity and Gregor Mendel

Group selection

Group selection is a proposed mechanism of evolution in which natural selection acts at the level of the group, instead of at the level of the individual or gene.

See Heredity and Group selection

Haemophilia

Haemophilia (British English), or hemophilia (American English), is a mostly inherited genetic disorder that impairs the body's ability to make blood clots, a process needed to stop bleeding.

See Heredity and Haemophilia

Hard inheritance

Hard inheritance was a model of heredity that explicitly excludes any acquired characteristics, such as of Lamarckism.

See Heredity and Hard inheritance

Heritability

Heritability is a statistic used in the fields of breeding and genetics that estimates the degree of variation in a phenotypic trait in a population that is due to genetic variation between individuals in that population.

See Heredity and Heritability

Hippocrates

Hippocrates of Kos (Hippokrátēs ho Kôios), also known as Hippocrates II, was a Greek physician and philosopher of the classical period who is considered one of the most outstanding figures in the history of medicine.

See Heredity and Hippocrates

Homologous chromosome

A pair of homologous chromosomes, or homologs, is a set of one maternal and one paternal chromosome that pair up with each other inside a cell during fertilization.

See Heredity and Homologous chromosome

Homunculus

A homunculus ("little person",: homunculi) is a small human being.

See Heredity and Homunculus

Lamarckism

Lamarckism, also known as Lamarckian inheritance or neo-Lamarckism, is the notion that an organism can pass on to its offspring physical characteristics that the parent organism acquired through use or disuse during its lifetime.

See Heredity and Lamarckism

Locus (genetics)

In genetics, a locus (loci) is a specific, fixed position on a chromosome where a particular gene or genetic marker is located. Heredity and locus (genetics) are genetics.

See Heredity and Locus (genetics)

Lysenkoism

Lysenkoism (Lysenkovshchina,; lysenkivščyna) was a political campaign led by Soviet biologist Trofim Lysenko against genetics and science-based agriculture in the mid-20th century, rejecting natural selection in favour of a form of Lamarckism, as well as expanding upon the techniques of vernalization and grafting.

See Heredity and Lysenkoism

Marfan syndrome

Marfan syndrome (MFS) is a multi-systemic genetic disorder that affects the connective tissue.

See Heredity and Marfan syndrome

Mendelian inheritance

Mendelian inheritance (also known as Mendelism) is a type of biological inheritance following the principles originally proposed by Gregor Mendel in 1865 and 1866, re-discovered in 1900 by Hugo de Vries and Carl Correns, and later popularized by William Bateson.

See Heredity and Mendelian inheritance

Mitochondrial DNA

Mitochondrial DNA (mtDNA and mDNA) is the DNA located in the mitochondria organelles in a eukaryotic cell that converts chemical energy from food into adenosine triphosphate (ATP).

See Heredity and Mitochondrial DNA

Mitochondrion

A mitochondrion is an organelle found in the cells of most eukaryotes, such as animals, plants and fungi.

See Heredity and Mitochondrion

Mitosis

Mitosis is a part of the cell cycle in which replicated chromosomes are separated into two new nuclei.

See Heredity and Mitosis

Modern synthesis (20th century)

The modern synthesis was the early 20th-century synthesis of Charles Darwin's theory of evolution and Gregor Mendel's ideas on heredity into a joint mathematical framework.

See Heredity and Modern synthesis (20th century)

Molecular genetics

Molecular genetics is a branch of biology that addresses how differences in the structures or expression of DNA molecules manifests as variation among organisms.

See Heredity and Molecular genetics

Molecule

A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds; depending on context, the term may or may not include ions which satisfy this criterion.

See Heredity and Molecule

Moravia

Moravia (Morava; Mähren) is a historical region in the east of the Czech Republic and one of three historical Czech lands, with Bohemia and Czech Silesia.

See Heredity and Moravia

Mouse

A mouse (mice) is a small rodent.

See Heredity and Mouse

Muller's morphs

Hermann J. Muller (1890–1967), who was a 1946 Nobel Prize winner, coined the terms amorph, hypomorph, hypermorph, antimorph and neomorph to classify mutations based on their behaviour in various genetic situations, as well as gene interaction between themselves.

See Heredity and Muller's morphs

Mutation

In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Heredity and mutation are genetics.

See Heredity and Mutation

Natural environment

The natural environment or natural world encompasses all biotic and abiotic things occurring naturally, meaning in this case not artificial.

See Heredity and Natural environment

Natural selection

Natural selection is the differential survival and reproduction of individuals due to differences in phenotype.

See Heredity and Natural selection

Niche construction

Niche construction is the ecological process by which an organism alters its own (or another species') local environment.

See Heredity and Niche construction

Non-Mendelian inheritance

Non-Mendelian inheritance is any pattern in which traits do not segregate in accordance with Mendel's laws.

See Heredity and Non-Mendelian inheritance

Nucleic acid sequence

A nucleic acid sequence is a succession of bases within the nucleotides forming alleles within a DNA (using GACT) or RNA (GACU) molecule.

See Heredity and Nucleic acid sequence

Oligogenic inheritance

Oligogenic inheritance (Greek ὀλίγος – ὀligos.

See Heredity and Oligogenic inheritance

On the Origin of Species

On the Origin of Species (or, more completely, On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life)The book's full original title was On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life.

See Heredity and On the Origin of Species

Organism

An organism is defined in a medical dictionary as any living thing that functions as an individual.

See Heredity and Organism

Osteogenesis imperfecta

Osteogenesis imperfecta (OI), colloquially known as brittle bone disease, is a group of genetic disorders that all result in bones that break easily.

See Heredity and Osteogenesis imperfecta

Overdominance

Overdominance is a phenomenon in genetics where the phenotype of the heterozygote lies outside the phenotypical range of both homozygous parents.

See Heredity and Overdominance

Pangenesis

Pangenesis was Charles Darwin's hypothetical mechanism for heredity, in which he proposed that each part of the body continually emitted its own type of small organic particles called gemmules that aggregated in the gonads, contributing heritable information to the gametes.

See Heredity and Pangenesis

Particulate inheritance

Particulate inheritance is a pattern of inheritance discovered by Mendelian genetics theorists, such as William Bateson, Ronald Fisher or Gregor Mendel himself, showing that phenotypic traits can be passed from generation to generation through "discrete particles" known as genes, which can keep their ability to be expressed while not always appearing in a descending generation.

See Heredity and Particulate inheritance

Penetrance

Penetrance in genetics is the proportion of individuals carrying a particular variant (or allele) of a gene (genotype) that also expresses an associated trait (phenotype). Heredity and Penetrance are genetics.

See Heredity and Penetrance

Phenotype

In genetics, the phenotype is the set of observable characteristics or traits of an organism.

See Heredity and Phenotype

Phenotypic trait

A phenotypic trait, simply trait, or character state is a distinct variant of a phenotypic characteristic of an organism; it may be either inherited or determined environmentally, but typically occurs as a combination of the two.

See Heredity and Phenotypic trait

Phenylketonuria

Phenylketonuria (PKU) is an inborn error of metabolism that results in decreased metabolism of the amino acid phenylalanine.

See Heredity and Phenylketonuria

Polygene

A polygene is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait, thus contributing to multiple-gene inheritance (polygenic inheritance, multigenic inheritance, quantitative inheritance), a type of non-Mendelian inheritance, as opposed to single-gene inheritance, which is the core notion of Mendelian inheritance.

See Heredity and Polygene

Polymer

A polymer is a substance or material consisting of very large molecules linked together into chains of repeating subunits.

See Heredity and Polymer

Prion

A prion is a misfolded protein that can induce misfolding of normal variants of the same protein and trigger cellular death. Heredity and prion are genetics.

See Heredity and Prion

Protein structure

Protein structure is the three-dimensional arrangement of atoms in an amino acid-chain molecule.

See Heredity and Protein structure

Quantitative trait locus

A quantitative trait locus (QTL) is a locus (section of DNA) that correlates with variation of a quantitative trait in the phenotype of a population of organisms.

See Heredity and Quantitative trait locus

RNA interference

RNA interference (RNAi) is a biological process in which RNA molecules are involved in sequence-specific suppression of gene expression by double-stranded RNA, through translational or transcriptional repression.

See Heredity and RNA interference

Ronald Fisher

Sir Ronald Aylmer Fisher (17 February 1890 – 29 July 1962) was a British polymath who was active as a mathematician, statistician, biologist, geneticist, and academic.

See Heredity and Ronald Fisher

Science Museum, London

The Science Museum is a major museum on Exhibition Road in South Kensington, London.

See Heredity and Science Museum, London

Sex chromosome

Sex chromosomes (also referred to as allosomes, heterotypical chromosome, gonosomes, heterochromosomes, or idiochromosomes) are chromosomes that carry the genes that determine the sex of an individual.

See Heredity and Sex chromosome

Sex linkage

Sex linked describes the sex-specific reading patterns of inheritance and presentation when a gene mutation (allele) is present on a sex chromosome (allosome) rather than a non-sex chromosome (autosome). Heredity and sex linkage are genetics.

See Heredity and Sex linkage

Sex-determination system

A sex-determination system is a biological system that determines the development of sexual characteristics in an organism.

See Heredity and Sex-determination system

Sex-limited genes

Sex-limited genes are genes that are present in both sexes of sexually reproducing species but are expressed in only one sex and have no penetrance, or are simply 'turned off' in the other.

See Heredity and Sex-limited genes

Sexual reproduction

Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (haploid reproductive cells, such as a sperm or egg cell) with a single set of chromosomes combines with another gamete to produce a zygote that develops into an organism composed of cells with two sets of chromosomes (diploid).

See Heredity and Sexual reproduction

Sickle cell disease

Sickle cell disease (SCD), also simply called sickle cell, is a group of hemoglobin-related blood disorders typically inherited.

See Heredity and Sickle cell disease

Soviet Union

The Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 to 1991.

See Heredity and Soviet Union

Speciation

Speciation is the evolutionary process by which populations evolve to become distinct species.

See Heredity and Speciation

Species

A species (species) is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction.

See Heredity and Species

Spermatozoon

A spermatozoon (also spelled spermatozoön;: spermatozoa) is a motile sperm cell, or moving form of the haploid cell that is the male gamete.

See Heredity and Spermatozoon

Stephen Jay Gould

Stephen Jay Gould (September 10, 1941 – May 20, 2002) was an American paleontologist, evolutionary biologist, and historian of science.

See Heredity and Stephen Jay Gould

Structural inheritance

Structural inheritance or cortical inheritance is the transmission of an epigenetic trait in a living organism by a self-perpetuating spatial structures.

See Heredity and Structural inheritance

Sun tanning

Sun tanning or tanning is the process whereby skin color is darkened or tanned.

See Heredity and Sun tanning

Sunburn

Sunburn is a form of radiation burn that affects living tissue, such as skin, that results from an overexposure to ultraviolet (UV) radiation, usually from the Sun.

See Heredity and Sunburn

Symbiogenesis

Symbiogenesis (endosymbiotic theory, or serial endosymbiotic theory) is the leading evolutionary theory of the origin of eukaryotic cells from prokaryotic organisms.

See Heredity and Symbiogenesis

Tail

The tail is the section at the rear end of certain kinds of animals' bodies; in general, the term refers to a distinct, flexible appendage to the torso.

See Heredity and Tail

The Correlation between Relatives on the Supposition of Mendelian Inheritance

"The Correlation between Relatives on the Supposition of Mendelian Inheritance" is a scientific paper by Ronald Fisher which was published in the Transactions of the Royal Society of Edinburgh in 1918, (volume 52, pages 399–433).

See Heredity and The Correlation between Relatives on the Supposition of Mendelian Inheritance

Theodosius Dobzhansky

Theodosius Grigorievich Dobzhansky (Феодо́сий Григо́рьевич Добржа́нский; Теодо́сій Григо́рович Добржа́нський; January 25, 1900 – December 18, 1975) was an American geneticist and evolutionary biologist.

See Heredity and Theodosius Dobzhansky

Theophrastus

Theophrastus (Θεόφραστος||godly phrased) was a Greek philosopher and the successor to Aristotle in the Peripatetic school.

See Heredity and Theophrastus

Transgenerational epigenetic inheritance

Transgenerational epigenetic inheritance is the transmission of epigenetic markers and modifications from one generation to multiple subsequent generations without altering the primary structure of DNA.

See Heredity and Transgenerational epigenetic inheritance

Trofim Lysenko

Trofim Denisovich Lysenko (Трофи́м Дени́сович Лысе́нко; Trokhym Denysovych Lysenko,; 20 November 1976) was a Soviet agronomist and scientist.

See Heredity and Trofim Lysenko

Underdominance

In genetics, underdominance, also known as homozygote advantage, heterozygote disadvantage, or negative overdominance," is the opposite of overdominance.

See Heredity and Underdominance

Uniparental inheritance

Uniparental inheritance is a non-Mendelian form of inheritance that consists of the transmission of genotypes from one parental type to all progeny. Heredity and Uniparental inheritance are genetics.

See Heredity and Uniparental inheritance

World War II

World War II or the Second World War (1 September 1939 – 2 September 1945) was a global conflict between two alliances: the Allies and the Axis powers.

See Heredity and World War II

X chromosome

The X chromosome is one of the two sex chromosomes in many organisms, including mammals, and is found in both males and females.

See Heredity and X chromosome

Y chromosome

The Y chromosome is one of two sex chromosomes in therian mammals and other organisms.

See Heredity and Y chromosome

Zygosity

Zygosity (the noun, zygote, is from the Greek "yoked," from "yoke") is the degree to which both copies of a chromosome or gene have the same genetic sequence.

See Heredity and Zygosity

References

[1] https://en.wikipedia.org/wiki/Heredity

Also known as Biological inheritance, Bloodline, Familial trait, Genetic inheritance, Genetic lines, Genetically-inherited, Hereditability, Hereditariness, Hereditary, Hereditary trait, Heredities, Heredity (cont. by William Daniels), Heredity, Historical Perspective, Heridity, Heritable, Inheritable, Inheritance (biology), Inherited trait, Science of heredity, Transmission (genetics).

, Heritability, Hippocrates, Homologous chromosome, Homunculus, Lamarckism, Locus (genetics), Lysenkoism, Marfan syndrome, Mendelian inheritance, Mitochondrial DNA, Mitochondrion, Mitosis, Modern synthesis (20th century), Molecular genetics, Molecule, Moravia, Mouse, Muller's morphs, Mutation, Natural environment, Natural selection, Niche construction, Non-Mendelian inheritance, Nucleic acid sequence, Oligogenic inheritance, On the Origin of Species, Organism, Osteogenesis imperfecta, Overdominance, Pangenesis, Particulate inheritance, Penetrance, Phenotype, Phenotypic trait, Phenylketonuria, Polygene, Polymer, Prion, Protein structure, Quantitative trait locus, RNA interference, Ronald Fisher, Science Museum, London, Sex chromosome, Sex linkage, Sex-determination system, Sex-limited genes, Sexual reproduction, Sickle cell disease, Soviet Union, Speciation, Species, Spermatozoon, Stephen Jay Gould, Structural inheritance, Sun tanning, Sunburn, Symbiogenesis, Tail, The Correlation between Relatives on the Supposition of Mendelian Inheritance, Theodosius Dobzhansky, Theophrastus, Transgenerational epigenetic inheritance, Trofim Lysenko, Underdominance, Uniparental inheritance, World War II, X chromosome, Y chromosome, Zygosity.