During Oogenesis in human, first maturation division starts ......A...... and completes ......B......

A - Before birth, B - Just prior to ovulation

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A- After birth, B - Before menopause

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A - Before ovulation, B - After entry of sperm

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A - Before ovulation, B - After fertilisation

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Solution

The correct option is C A - Before ovulation, B - After entry of sperm
Oogenesis in human is divided into 3 phases, namely multiplication phase, growth phase and maturation phase. In this, the oogonia multiply by the mitotic divisions and form the primary oocytes. The primary oocyte then enters the growth phase. The maturation division takes place during maturation phase. It starts before ovulation and completes after entry of sperm.
Thus, the correct answer is 'A - Before ovulation, B - After entry of sperm.'

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Similar questions

Rewrite the terms in the correct order so as to be in a logical sequence.

(a) Implantation, ovulation, child birth, gestation, fertilisation.

(b) Coitus, ovum, sperm, sperm duct, urethra, vagina.

(d) Puberty, menopause, menstruals, menarche, reproductive age.

(e) Graafian follicle, ostium, uterus, fallopian tube.

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