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, E and F ? Out of the two persons X and Y, which one is male and which one female?

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Solution

A is the ovum.
B is sperm.
C is the zygote.
D is the uterus.
E is the embryo.
F is the foetus.

The person X is a female and Y is a male.

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A is the ovum. B is sperm. C is the zygote. D is the uterus. E is the embryo. F is the foetus. The person X is a female and Y is a male.

A is the ovum.
B is sperm.
C is the zygote.
D is the uterus.
E is the embryo.
F is the foetus.

The person X is a female and Y is a male.