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प्रश्न
Drone of the honeybees shows haploid number of chromosomes. Illustrate.
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उत्तर
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संबंधित प्रश्न
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
The exchange of genetic material takes place in :
(a) vegetative reproduction
(b) asexual reproduction
(c) sexual reproduction
(d) budding
Write a short note on sex determination in man.
Write the functional activity of the following structure:
Heterosomes
Read the following statements and select the correct option.
i. If sperm containing Y chromosome fertilizes the ovum, then diploid zygote is formed that grows into a male child.
ii. If sperm containing X chromosome fertilizes ovum, then diploid zygote is formed, that grows into a female child.
Chromosomal constitution of normal human females can be written as ______.
In XO type of sex determination ______.
The maleness of a child is determined by ______
Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
What is the probability of a girl or a boy being born into a family? Justify your answer.
