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प्रश्न
Define the following:
Asexual reproduction
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उत्तर
Asexual reproduction: It is the type of reproduction in which the offspring are formed without the production of gametes.
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संबंधित प्रश्न
State the exact location of the Proximal convoluted tubule.
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.
State whether human beings reproduce by sexual method or asexual method.
Mention two functions of human testes.
When a fertilised egg E formed in the oviduct of a human female divides repeatedly to form an embryo, the embryo gets implanted in the thick and soft lining of the uterus. After this a disc-like special tissue T develops between the uterus wall and embryo through which all the requirements of the developing embryo (and foetus) are met from the mother's body, The embryo is connected to the tissue T through a string like structure S.
(a) What is the other name of fertilised egg cell E?
(b) What is the name of tissue T?
(c) Name the string-like structure S.
(d) Name two substances which pass from mother's blood to embryo through tissue T and, one type of substance which passes from embryo to mother's blood.
(e) What happens to S when the baby is born? Why?
Gender of child is determined by the male partner of couple. Explain with reasons whether this statement is true or false.
What do you understand by an inguinal hernia?
Choose the Odd One Out:
Mention the importance of the position of the testes in humans.
