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Penetration of spermatozoan into the egg...

Penetration of spermatozoan into the egg at fertilisation triggers metaphase-II in the secondary oocyte. This phenomenon is known as .......

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Penetration of the spermatozoan into the egg at fertilisation triggers metaphase-II in the secondary oocyle. This phenomenon is known as egg activation.
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Identify the statements as correct or incorrect with explanations for your answer (i) FSH acts on the Leydig cells and stimulates synthesis and secretion of androgens. (ii) The increased level of GnRH acts on the anterior pituitary and stimulates the secretion of gonadotropins, i.e. LH and FSH. (iii) The fully grown primary oocyte completes mitotic division producing two daughter nuclei, i.e. secondary oocyte and first polar body. (iv) Ovum is a rounded, motile cell having abundant cytoplasm called ooplasm and a large nucleus termed as germinal vesicle.

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Double fertilisation in an angiosperms plant means (a) fusion of two egg cells with two male gametes (b) fusion of egg cell twice with male gametes (c) fusion of one male gamete with the egg cell and the other male gamete with the synergid (d) fusion of one male gamete with the egg cell and the other male gamete with secondary nucleus

Select the correct option to fill up the blanks in the following statements. (i) Controlled breeding experoments are carried out using_____. (ii) In MOET technology, the fertilised eggs at______ cells stages, are recovered and transferred to surrogate mothers. (iii) In MOET technology, the cow produces______eggs instead of one egg. (iv) _______ is an industry devoted to the catching, processing or selling of fish.

ARIHANT PRAKASHAN-HUMAN REPRODUCTION-TOPIC -3- PRACTICE QUESTIONS EXAMS., TEXTBOOK.S & OTHER IMP. QUESTIONS (1 MARK QUESTIONS EXAMS. QUESTIONS)
  1. During fertilisation, the sperm's acrosome releases ........

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  2. The menstrual cycle spans ..... days and the ovulation occurs on the d...

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  3. Penetration of spermatozoan into the egg at fertilisation triggers met...

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  4. Following the failure of fertilisation, the corpus luteum regresses in...

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  5. The layers of cuboidal follicular cells surrounding the primary oocyte...

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  6. Stromal cells, surrounding the granulosa cells are known as ...... cel...

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  7. The non-cellular layer surrounding the primary oocyte is known as .......

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  8. Corpus luteum is the main source of oestrogen and .......

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  9. What is the function of amniotic fluid for the foetus?

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  10. What do you mean by endometrium. of the uterus?

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  11. What is the process of entry of spermatozoa into an ovum and the fusio...

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  12. What is the other name of trophoblast cells lying over the embryonic d...

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  13. What is capacitation with reference to sperm?

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  14. The tissue formed by the apposition of both the maternal and foetal ti...

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  15. The fertilizing-antifertilizin reaction that stops the march of a larg...

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  16. The mucopolysaccharide layer surrounding a primary ovarian follicle is...

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  17. The regressing follicles and the act of regression.

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  18. The uterine layer that is sloughed off during menstrual cycle.

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  19. The arteries of the uterine wall undergo disintegration during the men...

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  20. The height of LH secretion, 16-26 hours before ovulation.

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