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ZW sex-determination system

Index ZW sex-determination system

The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), and some reptiles, including Komodo dragons. [1]

32 relations: Asexual reproduction, Autosome, Bird, Boa constrictor, Bombyx mori, Butterfly, Chromosome, Common descent, Crustacean, Dosage compensation, Egg cell, Embryo, Fish, Haplodiploidy, Heterogametic sex, Insect, Komodo dragon, Lepidoptera, Macrobrachium rosenbergii, Meiosis, Moth, Nature (journal), Platypus, Sex link, Sex-determination system, Sexual differentiation, Sperm, Temperature-dependent sex determination, X chromosome, X0 sex-determination system, XY sex-determination system, Y chromosome.

Asexual reproduction

Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.

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Autosome

An autosome is a chromosome that is not an allosome (a sex chromosome).

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Bird

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

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Boa constrictor

The boa constrictor (Boa constrictor), also called the red-tailed boa or the common boa, is a species of large, heavy-bodied snake that is frequently kept and bred in captivity.

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Bombyx mori

The silkworm is the larva or caterpillar or imago of the domestic silkmoth, Bombyx mori (Latin: "silkworm of the mulberry tree").

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Butterfly

Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths.

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Chromosome

A chromosome (from Ancient Greek: χρωμόσωμα, chromosoma, chroma means colour, soma means body) is a DNA molecule with part or all of the genetic material (genome) of an organism.

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Common descent

Common descent describes how, in evolutionary biology, a group of organisms share a most recent common ancestor.

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Crustacean

Crustaceans (Crustacea) form a large, diverse arthropod taxon which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill, woodlice, and barnacles.

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Dosage compensation

Dosage compensation is the process by which organisms equalize the expression of genes between members of different biological sexes.

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Egg cell

The egg cell, or ovum (plural ova), is the female reproductive cell (gamete) in oogamous organisms.

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Embryo

An embryo is an early stage of development of a multicellular diploid eukaryotic organism.

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Fish

Fish are gill-bearing aquatic craniate animals that lack limbs with digits.

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Haplodiploidy

Haplodiploidy is a sex-determination system in which males develop from unfertilized eggs and are haploid, and females develop from fertilized eggs and are diploid.

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Heterogametic sex

Heterogametic sex (digametic sex) refers to the sex of a species in which the sex chromosomes are not the same.

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Insect

Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.

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Komodo dragon

The Komodo dragon (Varanus komodoensis), also known as the Komodo monitor, is a species of lizard found in the Indonesian islands of Komodo, Rinca, Flores, Gili Motang, and Padar.

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Lepidoptera

Lepidoptera is an order of insects that includes butterflies and moths (both are called lepidopterans).

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Macrobrachium rosenbergii

Macrobrachium rosenbergii, also known as the giant river prawn or giant freshwater prawn, is a commercially important species of palaemonid freshwater prawn.

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Meiosis

Meiosis (from Greek μείωσις, meiosis, which means lessening) is a specialized type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell that gave rise to them.

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Moth

Moths comprise a group of insects related to butterflies, belonging to the order Lepidoptera.

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Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

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Platypus

The platypus (Ornithorhynchus anatinus), sometimes referred to as the duck-billed platypus, is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.

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Sex link

Sex-links are cross-bred chickens whose color at hatching is differentiated by sex, thus making chick sexing an easier process.

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Sex-determination system

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

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Sexual differentiation

Sexual differentiation is the process of development of the differences between males and females from an undifferentiated zygote.

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Sperm

Sperm is the male reproductive cell and is derived from the Greek word (σπέρμα) sperma (meaning "seed").

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Temperature-dependent sex determination

Temperature-dependent sex determination (TSD) is a type of environmental sex determination in which the temperatures experienced during embryonic/larval development determine the sex of the offspring.

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X chromosome

The X chromosome is one of the two sex-determining chromosomes (allosomes) in many organisms, including mammals (the other is the Y chromosome), and is found in both males and females.

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X0 sex-determination system

The X0 sex-determination system is a system that determines the sex of offspring among.

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XY sex-determination system

The XY sex-determination system is the sex-determination system found in humans, most other mammals, some insects (Drosophila), some snakes, and some plants (Ginkgo).

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Y chromosome

The Y chromosome is one of two sex chromosomes (allosomes) in mammals, including humans, and many other animals.

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Redirects here:

W chromosome, WZ sex-determination system, Z chromosome, ZW sex determination.

References

[1] https://en.wikipedia.org/wiki/ZW_sex-determination_system

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