explain giving example the different chromoshomal sex ditermination mechenics
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1. XX-XY - This type of sex determination is found in mammals, including humans, and most insects, including fruitfly. In this type, one sex chromosome is smaller than the other in the males.
The larger one is known as X chromosome and the smaller one as Y chromosome.
2. XX-XO - This type is found in certain insects such as cockroach and some roundworms. The Y chromosome is missing so that the male has only one sex chromosome.The condition in the male is XO (O means absence of one sex chromosome).
3. ZW-ZZ - In many vertebrates (fishes,reptiles, birds) and some insects(butterflies and moths). The female has heteromorphic chromosomes and male has homomorphic sex chromosome.
4. ZO-ZZ - In some butterflies and moths.
The larger one is known as X chromosome and the smaller one as Y chromosome.
2. XX-XO - This type is found in certain insects such as cockroach and some roundworms. The Y chromosome is missing so that the male has only one sex chromosome.The condition in the male is XO (O means absence of one sex chromosome).
3. ZW-ZZ - In many vertebrates (fishes,reptiles, birds) and some insects(butterflies and moths). The female has heteromorphic chromosomes and male has homomorphic sex chromosome.
4. ZO-ZZ - In some butterflies and moths.
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