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प्रश्न
Distinguish between the following pair:
Spermatogenesis and oogenesis
उत्तर
Spermatogenesis: It is the mechanism by which sperm are produced in the testes' seminiferous tubules.
Oogenesis: It is the process by which an ovum develops into a mature egg, which is called growth.
संबंधित प्रश्न
After puberty human female shows cyclic changes in her reproductive system. Explain structural and hormonal changes in the uterus.
(OR)
Give reasons :
(1) Scrotal sac serves as thermoregulator.
(2) Corpus luteum gets converted into corpus albicans in absence of fertilization.
(3) Missing of menses is the first indication of pregnancy.
(4) Surgical sterilization is a permanent method of birth control. (5) Human egg is microlecithal.
Write the functional activity of the following structure:
Graafian follicle
Hormones secreted by the ovary of the female reproductive system.
Identify the layer of the uterine wall that undergoes changes during menstrual cycle.
Which of the following is ectodermal in origin?
| (i) | Heart |
| (ii) | Sweat glands |
| (iii) | Adrenal medulla |
| (iv) | Middle ear |
| (v) | Urinary bladder |
| (vi) | Dermis of skin |
Which one is correct for mammalian testis?
Which of the following is correct about mammalian testes?
To answer the question, study the graphs below for Subjects 1 and 2 showing different levels of certain hormones.
For subject 2 it is observed that the peak for hormone B has reached the plateau stage. After approximately how much time will the curve for hormone B descend?
Given below is a certain situation. Analyze and describe its possible impact on a person:
Egg is not fertilised in a human female.
The ______ is also called the womb.
