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प्रश्न
Define the following:
Clone
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उत्तर
संबंधित प्रश्न
State the changes that take place in the uterus when Female gamete/egg is not fertilised
Fertilisation results immediately in the formation of :
(a) a zygote
(b) an embryo
(c) a placenta
(d) a foetus
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?
Write two examples of sexually transmitted diseases caused by virus.
Describe in brief the role of seminal vesicle in human male reproductive system.
Sketch and label human female reproductive system.
Is the woman responsible for sex-determination of child? Justify your answer.
Define the following:
Implantation
The below diagram is of a developing embryo is a mother’s womb:
(i) Write the functions of the placenta, amnion, and umbilical cord.
(ii) How are the waste products of a fetus removed?
(iii) What is the gestation period?
Explain the term Parturition or birth.
Match Columns I and II and select the correct option.
| Columns I | Columns II | ||
| i. | Transfer of sperms in the female genital tract. | a. | Gestation |
| ii. | Delivery of baby | b. | Fertilization |
| iii. | Fusion of male and female gamete. | c. | Parturition |
| iv. | Formation of sperms and ovum | d. | Insemination |
| e. | Gametogenesis |
