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प्रश्न
The membranous cover of the ovum at ovulation is ______.
विकल्प
Corona radiata
Zona radiata
Zona pellucida
Chorion
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उत्तर
The membranous cover of the ovum at ovulation is corona radiata.
Explanation:
The corona radiata is the membranous cover of the ovum at ovulation, formed by the layers of follicular cells surrounding the ovum. It provides nutrients and protection to the ovum during ovulation.
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संबंधित प्रश्न
Find the odd one out and write it: vagina, uterus, vas deferens, ovary
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(iii) where zygote gets implanted.
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(d) supplies oxygenated blood from the mother to the embryo.
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
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?
The germ cell A produced by a person X is round in shape and it fuses with another germ cell B having a long tail and produced by a person Y. The fusion of A and B produces a new cell C. The cell C divides repeatedly and grows inside the organ D of person X to form E in which the body features of the unborn baby are not much developed. E grows further to form F in which the various body features of the unborn baby (like hands, legs, head, eyes, and ears, etc.) can be identified. F grows further and ultimately forms a baby. What are A, B, C, D, E and F? Out of the two persons X and Y, which one is male and which one female?
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Fill in the blank.
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Choose the correct answer:
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Give the function of the following:
Uterus
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Parthenogenesis
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Give Technical Term:
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Multiple Choice Question:
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The male homologue of the female clitoris is ____________.
What is the composition of semen?
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Distinguish between Vasa efferentia and Vasa deferentia.
