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प्रश्न
Structures present in a cell which is responsible for determination of the sex of a baby is
विकल्प
cytoplasm
cell membrane
nucleus
chromosome
उत्तर
chromosome
Explanation -
The sex of a baby is determined by the type of sex chromosomes present in the fertilised egg from which the baby develops. There are two types of sex chromosomes-X and Y.
A female has only two X-chromosomes, i.e. XX, whereas a male has one X and one Y-chromosome, i.e. XY combination.
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संबंधित प्रश्न
Name the species used in sericulture. Name the stages in the life cycle of a silk moth in cyclic form.
There are two sets of chromosomes in the zygote.
The number of pair(s) of sex chromosomes in the zygote of humans is :
(a) one
(b) two
(c) three
(d) four
E is the gene for brown eye colour and an is the gene for blue eye colour. which gene is (1) recessive, and (2) dominant?
In which livings, female decides the sex? Give two examples.
Short Answer Question.
“Father is responsible for determination of sex of child and not the mother”. Justify.
ZZ / ZW type of sex determination is seen in ______.
Which of the following statements is not true with respect to variation?
The chromosomal constitution of a human female can be written as ______
