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Question
Define the following:
Sex chromosomes
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Solution
Sex chromosomes - The chromosomes which determine the sex of an individual are called sex chromosomes.
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RELATED QUESTIONS
In a human, how many chromosmes are present in a fertilised egg?
The number of pair(s) of sex chromosomes in the zygote of humans is :
(a) one
(b) two
(c) three
(d) four
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?
Why did T. H. Morgan select Drosophila melanogaster to study sex linked genes for his lab experiments ?
Choose the correct answer:
A man can transfer his sex-linked gene to his ______________
Complete the following sentence with appropriate word:
___________ chromosomes do not take part in sex determination.
What is male heterogamety?
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.
The ‘X’ body of Henking was observed in ______.
The sex chromosome in a human ovum is ______.
