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प्रश्न
The normal body cell of an organism contains 28 pairs of chromosomes. The number of chromosomes present in its germ cell will be
(a) 28
(b) 14
(c) 56
(d) 42
उत्तर
(b) 14
A germ cell has 14 pairs of chromosomes i.e. half the number of chromosomes present in the normal body cell of an organism.
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संबंधित प्रश्न
List two functions ovary of human female reproductive system.
The pituitary hormone which stimulates contraction of uterus during child birth.
What is the scientific name of birth canal?
Draw a labelled diagram of the human female reproductive system. With the help of this diagram, explain the working of human female reproductive system.
Which among the following are not the functions of testes at puberty?
(i) formation of germ cells
(ii) secretion of testosterone
(iii) development of the placenta
(iv) secretion of estrogen
In humans, the fertilization takes place in:
Define the term puberty.
State the role of placenta in the development of embryo.
Explain how the sex of the child is determined at the time of conception in human beings.
Choose the Odd One Out:
