45 relations: Allosome, Barr body, Base pair, Charge-coupled device, Chromosome, Clarence Erwin McClung, Confocal laser scanning microscopy, DAPI, DNA, Egg cell, Embryo, Euchromatin, Firebug, G banding, Gene, Genetic disorder, Hermann Henking, Intellectual disability, Intelligence quotient, Karyotype, Klinefelter syndrome, Lisch epithelial corneal dystrophy, List of X-STR markers, Megalocornea, Meiosis, Monosomy, Mutation, Nature (journal), Sex linkage, Sex-determination system, Spermatozoon, Staining, Testicle, Testis determining factor, Testosterone, Triple X syndrome, Turner syndrome, X-inactivation, X-linked endothelial corneal dystrophy, X0 sex-determination system, XX male syndrome, XY sex-determination system, Y chromosome, 48, XXXX, 49, XXXXX.
An allosome (also referred to as a sex chromosome, heterotypical chromosome, heterochromosome, or idiochromosome) is a chromosome that differs from an ordinary autosome in form, size, and behavior.
New!!: X chromosome and Allosome ·
A Barr body (named after discoverer Murray Barr) is the inactive X chromosome in a female somatic cell, rendered inactive in a process called lyonization, in those species in which sex is determined by the presence of the Y (including humans) or W chromosome rather than the diploidy of the X or Z. The Lyon hypothesis states that in cells with multiple X chromosomes, all but one are inactivated during mammalian embryogenesis.
New!!: X chromosome and Barr body ·
Base pairs (unit: bp), which form between specific nucleobases (also termed nitrogenous bases), are the building blocks of the DNA double helix and contribute to the folded structure of both DNA and RNA.
New!!: X chromosome and Base pair ·
A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.
A chromosome (''chromo-'' + ''-some'') is a packaged and organized structure containing most of the DNA of a living organism.
New!!: X chromosome and Chromosome ·
Clarence Erwin McClung (April 5, 1870 – January 17, 1946) was an American biologist who discovered the role of chromosomes in sex determination.
Confocal laser scanning microscopy (CLSM or LSCM) is a technique for obtaining high-resolution optical images with depth selectivity.
DAPI (4',6-diamidino-2-phenylindole) is a fluorescent stain that binds strongly to A-T rich regions in DNA.
New!!: X chromosome and DAPI ·
Deoxyribonucleic acid (DNA) is a molecule that carries most of the genetic instructions used in the development, functioning and reproduction of all known living organisms and many viruses.
New!!: X chromosome and DNA ·
The egg cell, or ovum, is the female reproductive cell (gamete) in oogamous organisms.
New!!: X chromosome and Egg cell ·
An embryo is a multicellular diploid eukaryote in its earliest stage of development, from the time of fertilization through sexual reproduction until birth, hatching, or germination.
New!!: X chromosome and Embryo ·
Euchromatin is a lightly packed form of chromatin (DNA, RNA and protein) that is rich in gene concentration, and is often (but not always) under active transcription.
New!!: X chromosome and Euchromatin ·
The firebug, Pyrrhocoris apterus, is a common insect of the family Pyrrhocoridae.
New!!: X chromosome and Firebug ·
G-banding, G banding, or Giemsa banding is a technique used in cytogenetics to produce a visible karyotype by staining condensed chromosomes.
New!!: X chromosome and G banding ·
A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity.
New!!: X chromosome and Gene ·
A genetic disorder is a genetic problem caused by one or more abnormalities in the genome, especially a condition that is present from birth (congenital).
New!!: X chromosome and Genetic disorder ·
Hermann Henking (1858 - 1942) was a cytologist who discovered the X chromosome in 1890 or 1891.
New!!: X chromosome and Hermann Henking ·
Intellectual disability (ID), also called intellectual development disorder (IDD) or general learning disability, and formerly known as mental retardation (MR), is a generalized neurodevelopmental disorder characterized by significantly impaired intellectual and adaptive functioning.
An intelligence quotient (IQ) is a score derived from one of several standardized tests designed to assess human intelligence.
A karyotype (from Greek κάρυον karyon, "kernel", "seed", or "nucleus", and τύπος typos, "general form") is the number and appearance of chromosomes in the nucleus of a eukaryotic cell.
New!!: X chromosome and Karyotype ·
Klinefelter syndrome or Klinefelter's syndrome (KS) also known as 47,XXY or XXY, is the set of symptoms that result from two or more X chromosome in males.
Lisch epithelial corneal dystrophy (LECD), also known as band-shaped and whorled microcystic dystrophy of the corneal epithelium, is a rare form of corneal dystrophy first described in 1992 by Lisch et al.
The following X-STR markers are used in genealogical DNA testing and other forms of relationship testing.
Megalocornea (MGCN, MGCN1) is an extremely rare nonprogressive condition in which the cornea has an enlarged diameter, reaching and exceeding 13 mm.
New!!: X chromosome and Megalocornea ·
Meiosis is a specialized type of cell division which reduces the chromosome number by half.
New!!: X chromosome and Meiosis ·
Monosomy is a form of aneuploidy with the presence of only one chromosome from a pair.
New!!: X chromosome and Monosomy ·
In biology, a mutation is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements.
New!!: X chromosome and Mutation ·
Nature is a British interdisciplinary scientific journal, first published on 4 November 1869.
New!!: X chromosome and Nature (journal) ·
Sex linkage is the phenotypic expression of an allele related to the chromosomal sex of the individual.
New!!: X chromosome and Sex linkage ·
A sex-determination system is a biological system that determines the development of sexual characteristics in an organism.
A spermatozoon (pronounced, alternate spelling spermatozoön; plural spermatozoa; from σπέρμα "seed" and ζῷον "living being") is a motile sperm cell, or moving form of the haploid cell that is the male gamete.
New!!: X chromosome and Spermatozoon ·
Staining is an auxiliary technique used in microscopy to enhance contrast in the microscopic image.
New!!: X chromosome and Staining ·
The testicle (from Latin testiculus, diminutive of testis, meaning "witness" of virility, plural testes) is the male gonad in animals.
New!!: X chromosome and Testicle ·
Testis-determining factor (TDF), also known as sex-determining region Y (SRY) protein, is a DNA-binding protein (also known as gene-regulatory protein/transcription factor) encoded by the SRY gene that is responsible for the initiation of male sex determination in humans.
Testosterone is a steroid hormone from the androgen group and is found in humans and other vertebrates.
New!!: X chromosome and Testosterone ·
Triple X syndrome (also known as triplo-X, trisomy X, XXX syndrome, 47,XXX aneuploidy) is a form of chromosomal variation characterized by the presence of an extra X chromosome in each cell of a human female.
New!!: X chromosome and Triple X syndrome ·
Turner syndrome (TS) also known as Ullrich–Turner syndrome, gonadal dysgenesis, and 45,X, is a condition in which a female is partly or completely missing an X chromosome.
New!!: X chromosome and Turner syndrome ·
X-inactivation (also called lyonization) is a process by which one of the two copies of the X chromosome present in female mammals is inactivated.
New!!: X chromosome and X-inactivation ·
X-linked endothelial corneal dystrophy (XECD) is a rare form of corneal dystrophy described first in 2006, based on a 4-generation family of 60 members with 9 affected males and 35 trait carriers, which led to mapping the XECD locus to Xq25.
The X0 sex-determination system is a system that determines the sex of offspring among grasshoppers, crickets, cockroaches, and some other insects.
XX male syndrome (also called de la Chapelle syndrome, for Albert de la Chapelle, who characterized it in 1972) is a rare sex chromosomal disorder.
New!!: X chromosome and XX male syndrome ·
The XY sex-determination system is the sex-determination system found in humans, most other mammals, some insects (Drosophila), and some plants (Ginkgo).
The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals.
New!!: X chromosome and Y chromosome ·
XXXX syndrome (also called tetrasomy X, quadruple X, or 48, XXXX) is a rare chromosomal disorder caused by the presence of four X chromosomes instead of two X chromosomes.
New!!: X chromosome and 48, XXXX ·
XXXXX syndrome (also called pentasomy X or 49,XXXXX) is a type of aneuploidy (an abnormal number of chromosomes) which results in the presence of three additional X chromosomes.
New!!: X chromosome and 49, XXXXX ·