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प्रश्न
Write the functional activity of the following structure:
Heterosomes
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उत्तर
Sex-determination.
APPEARS IN
संबंधित प्रश्न
"The sex of a newborn child is a matter of chance and none of the parents may be considered responsible for it". Draw a flow chart showing determination of sex of a newborn to justify this statement.
Explain the mechanism of 'sex determination' in birds. How does it differ from that of human beings?
Choose the correct answer :
Human sex chromosomes are __________
Which of the following develops through parthenogene is?
A zygote which has an X-chromosome inherited from the father will develop into a ______.
The maleness of a child is determined by ______
The belief that the mother is completely responsible for the sex of the child is wrong because the child
Name the two types of gametes produced by men.
Sex of an individual is determined by different factors in various species. Some animals rely entirely on the environmental ones, while in some other animals the individuals can change their sex during their life time indicating that sex of some species is not genetically determined. However in human beings, the sex of an individual is largely determined genetically.
- In what way are the sex chromosomes 'X' and 'Y' different in size? Name the mismatched pair of sex chromosome in humans.
- Write the number of pair/pairs of sex chromosomes present in human beings. In which one of the parent (male/female) perfect pair/pairs of sex chromosome are present?
- Citing two examples, justify the statement "Sex of an individual is not always determined genetically".
OR
Draw a flow chart to show that sex is determined genetically in human beings.
A zygote which has Y chromosome inherited from the father will develop into a ______.
