Biology 12 Chapter - 20 Reproduction - 12

Biology 12 Chapter - 20 Reproduction - 12

1. The process of egg formation is called?

a) Menstruation
b) Spermatogenesis
c) Oogenesis
d) Luteinisation

2. Oogenesis starts when the individual is at…………..stage?

a) Old
b) Adult
c) Childhood
d) Foetus

3. Oogonia is…………….stem cells of ovaries?

a) Triploid
b) Tetraploid
c) Diploid
d) Haploid

4. Primary oocyte is…………….?

a) Tetraploid
b) Triploid
c) Haploid
d) Diploid

5. At which stage does meiosis I of primary oocyte “stalled”?

a) Anaphase I
b) Metaphase I
c) Prophase I
d) Telophase I

6. What is the time period at which meiosis I of primary oocyte remain “stalled” at prophase I stage?

a) 10-20 years
b) 10-12 years
c) 10-18 years
d) 10-14 years

7. How many primary oocytes are selected to continue meiosis I?

a) 1
b) 3
c) 2
d) 4

8. Which daughter cell of meiosis of primary oocyte is called secondary oocyte?

a) None of these
b) Larger
c) Smaller
d) Middle

9. Which daughter cell of meiosis of primary oocyte is called first polar body?

a) Middle
b) None of these
c) Smaller
d) Larger

10. At which stage of Meiosis II does secondary oocyte ovulate?a) Telophase
b) Anaphase
c) Metaphase
d) Prophase

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