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प्रश्न
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संबंधित प्रश्न
There are ................ pairs of chromosomes in the human being.
Which combination of genes in the zygote will produce children with brown eyes?
The person A has only B chromosomes in all its gametes. On the other hand, another person C has chromosome D in half of gametes and chromosome E in the other half of gametes. When chromosomes B and D combine during fertilisation, a female zygote results. On the other hand, combination of B and E chromosomes produces a male zygote.
(a) What are chromosomes (i) B (ii) D, and (iii) E?
(b) Out of B, D and E, which two chromosomes are of the same type?
(c) Which chromosome is smaller in size?
(d) What is the general name of chromosomes such as B and E?
(e) Out of the two persons A and C, which one is (i) male, and (ii) female?
Does the sex of the child depend on the father or it is just a matter of chance? Discuss.
Define the following:
Sex-linked characters
Answer the following question:
How is sex determined in human beings? Explain with the help of a diagram.
Which of the following combination of chromosome numbers represents the correct sex determination pattern in honey bees?
A zygote which has an X-chromosome inherited from the father will develop into a ______.
Human offspring’s sex is determined ______
What is the probability of a girl or a boy being born into a family? Justify your answer.
