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प्रश्न
Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
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उत्तर
As a rule the heterogametic organism determines the sex of the unborn child. In case of humans, since males are heterogametic it is the father and not the mother who decides the sex of the child. In some animals like crocodiles, lower temperature favour hatching of female offsprings and higher temperatures lead to hatching of male offsprings.
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संबंधित प्रश्न
If X chromosome is inherited from mother and Y from father, the offspring will be male.
A normal cell of human body contains 23 pairs of chromosomes. The number of chromosomes in a sex cell (sperm or ovum) of a human being is most likely to be :
(a) 46
(b) 23
(c) 21
(d) 42
Which combination of genes in the zygote will produce children with brown eyes?
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________ shows haplo-diploid type of sex-determination.
Choose the correct answer :
Human sex chromosomes are __________
Write a short note on sex determination in man.
XO type of sex determination and XY type of sex determination are examples of ____________.
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
Which of the following develops through parthenogene is?
In XO type of sex determination ______.
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A zygote which has an X-chromosome inherited from the father will develop into a
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A trait in an organism is influenced by
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