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प्रश्न
Define the following:
Clone
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उत्तर
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संबंधित प्रश्न
List two functions ovary of human female reproductive system.
What are sexually transmitted diseases?
Give scientific reasons: When an ovum gets fertilized, menstrual cycle stops temporarily in a woman.
The diagram given below is that of a developing human foetus. Study the diagram and then answer the questions that follow:
(i) Label the parts numbered 1 to 3 in the diagram.
(ii) Mention any two functions of the part labelled 2 in the diagram.
(iii) Explain the significance of the part numbered 3 in the diagram.
(iv) Define the term ‘Gestation’. What is the normal gestational period of the developing human embryo?
(v) Mention the sex chromosomes in a male and female embryo.
Describe the process of fertilisation in humans and development of embryo briefly.
Explain why, fertilisation is possible if mating takes place during the middle of menstrual cycle.
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
Explain why, a human zygote is more likely to grow into an adult than a frog zygote.
Draw a labeled diagram of the human female reproductive system.
Choose the Odd One Out:
