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प्रश्न
What is heterogamety ? Explain the mechanism of sex determinatin in Drosophila.
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
Write notes on sex determination in the unborn baby.
Which of the following is an example of ZW – ZZ type of mechanism of sex determination?
Which of the following combinations of sex chromosomes produce a male child : XX or XY?
The two versions of a trait (character) which are brought in by the male and female gametes are situated on :
(a) copies of the same chromosome
(b) sex chromosomes
(c) two different chromosomes
(d) any chromosomes
Does the sex of the child depend on the father or it is just a matter of chance? Discuss.
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
Explain the mode of sex determination in honeybees.
From the following which option correctly represents the normal genetic constitution of a ovum?
There are five daughters and no son in a family. It is because
What is the probability of a girl or a boy being born into a family? Justify your answer.
