Sex Determination — Important Questions
Telangana Open School (TOSS) · Class 12 · Biology
40 important questions from Sex Determination for Telangana Open School (TOSS) Class 12 Biology, with answers. Written for the board exams 2027.
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Important Questions from Sex Determination
What does the term 'heterogametic' refer to?
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Produces dissimilar gametes
Heterogametic individuals produce two types of gametes with respect to sex chromosomes, like males in humans (X or Y).
In humans, which sex is heterogametic?
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Male
Human males are heterogametic because they produce two types of sperm: one with X and one with Y chromosome.
What is the sex chromosome configuration in female Drosophila?
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XX
Female Drosophila have two X chromosomes, making their configuration XX.
Which of the following is an example of female heterogamety?
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Birds
In birds, females are heterogametic (ZW) and males are homogametic (ZZ), which is an example of female heterogamety.
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