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प्रश्न
What is heterogamety ? Explain the mechanism of sex determinatin in Drosophila.
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उत्तर
Heterogamety - Either male or female individual produces two different types of gametes.
Mechanism of sex determination in Drosophila. In Drosophila, the males have one X and one Y chromosome, whereas females have a pair of X-chromosomes besides autosomes.
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संबंधित प्रश्न
Which of the following combinations of sex chromosomes produce a male child : XX or XY?
If a normal human cell has 46 chromosomes, how many chromosomes will be there in a human sperm cell?
Name any two genetic in humans.
Which of the following is incorrect regarding ZW-ZZ type of sex determination?
How is sex determined in human beings?
From the following which option correctly represents the normal genetic constitution of a ovum?
Which of the following determines the sex of a child?
Which biological mechanism establishes whether an individual develops as male or female based on genetic or chromosomal factors?
In 1891, H. Henking studied spermatogenesis in squash bugs and observed that a specific nuclear structure was present in what percentage of the resulting sperms?
Which of the following organisms exhibits the XX–XY sex determination system?
