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प्रश्न
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
A zygote is the product of the fusion of male and female gametes.
पर्याय
True
False
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उत्तर
True
APPEARS IN
संबंधित प्रश्न
Name the parts of the human female reproductive system where
i. fertilisation takes place
ii. implantation of the fertilised egg occurs
Describe in brief what happens to the zygote after it gets implanted.
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.
Why does menstruation occur? Describe the menstrual cycle in human females (or women).
Which of the following is not a sexually transmitted disease?
(a) gonorrhoea
(b) hepatitis
(c) syphilis
(d) AIDS
List two changes observed in girls at the time of puberty.
Diagram shows the reproductive system of female human beings:
(i) Name the parts numbered 1 to 14.
(ii) Normally, after how many days does an ovary release an egg?
(iii) Where are the sperms released during coitus?
(iv) What is the role of sperms after their ejaculation in vagina?
(v) What is the function of the organ numbered 5?
(vi) What is the gestation period in human?
Give the functions of the following:
Vagina
Define the following:
Sexual reproduction
Give Reasons
At the time of birth, the testes descend into the scrotal sacs.
