- Animals Male Female- Cockroach XO XX- Grasshopper XO XX- Human XY XX- Bird ZW ZZ- Fish ZZ ZW- -The sex chromosome of different organisms are given above- Which of the following are incorrectly marked-

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Standard X

Biology

Sex Determination

[ Animals ...

Question

$\begin{matrix} Animals & Male & Female Cockroach & X O & X X Grasshopper & X O & X X Human & X Y & X X Bird & Z W & Z Z Fish & Z Z & Z W \end{matrix}$
The sex chromosome of different organisms are given above. Which of the following are incorrectly marked?

Human, Bird and Grasshopper

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Grasshopper, Human and Fish

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Fish, Cockroach and Human

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Cockroach and Bird

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Solution

The correct option is D Cockroach and Bird
The ZZ-ZW chromosome is found in birds, reptiles and fish. In this system, the females have ZW chromosomes while the males have ZZ chromosome. In cockroaches, the females contain the XO chromosome whereas the males have two homomorphic XX chromosomes.

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AnimalsMaleFemaleCockroachXOXXGrasshopperXOXXHumanXYXXBirdZWZZFishZZZW The sex chromosome of different organisms are given above. Which of the following are incorrectly marked?

The correct option is D Cockroach and BirdThe ZZ-ZW chromosome is found in birds, reptiles and fish. In this system, the females have ZW chromosomes while the males have ZZ chromosome. In cockroaches, the females contain the XO chromosome whereas the males have two homomorphic XX chromosomes.

$\begin{matrix} Animals & Male & Female Cockroach & X O & X X Grasshopper & X O & X X Human & X Y & X X Bird & Z W & Z Z Fish & Z Z & Z W \end{matrix}$
The sex chromosome of different organisms are given above. Which of the following are incorrectly marked?

The correct option is D Cockroach and Bird
The ZZ-ZW chromosome is found in birds, reptiles and fish. In this system, the females have ZW chromosomes while the males have ZZ chromosome. In cockroaches, the females contain the XO chromosome whereas the males have two homomorphic XX chromosomes.