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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
There are ................ pairs of chromosomes in the human being.
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
Complete the following sentence with appropriate word:
___________ chromosomes do not take part in sex determination.
What is haplodiploidy?
What is Lyonisation?
Differentiate Intersexes from Supersexes.
The ‘X’ body of Henking was observed in ______.
How many types of gametes are produced by a human female?
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?
