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Question
In which female has a pair of XX chromosomes?
In which female has a pair of XX chromosomes?
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Solution
The correct option is B Drosophila
- There are two types of heterogamety seen in organisms: female heterogamety and male heterogamety.
- In female heterogamety, the female parent produces two types of gametes (ZW) while the male parent produces only one type of gamete (ZZ). Female heterogamety seen in birds (such as bulbul, peafowl, etc) and butterflies.
- In male heterogamety, the male parent produces two types of gametes (XY or XO) while the female produces only one type of gamete (XX). Male heterogamety is seen in humans, grasshopper, Drosophila, etc.
Hence, the correct answer is option A, i.e., Drosophila.
- There are two types of heterogamety seen in organisms: female heterogamety and male heterogamety.
- In female heterogamety, the female parent produces two types of gametes (ZW) while the male parent produces only one type of gamete (ZZ). Female heterogamety seen in birds (such as bulbul, peafowl, etc) and butterflies.
- In male heterogamety, the male parent produces two types of gametes (XY or XO) while the female produces only one type of gamete (XX). Male heterogamety is seen in humans, grasshopper, Drosophila, etc.
Hence, the correct answer is option A, i.e., Drosophila.
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