Gametogenesis & Fertilisation

1.Describe the steps of fertilization and its effects

2.Stages and consequences of fertilisation

1.Spermatogenesis

2.Oogenesis

3.Describe fertilization and its results

4.Effects of fertilization

5.Fertilization

1.Stage of meiosis I at which oogenesis is arrested

1.Assertion: Oogenesis begins in fetal life and then arrested until puberty. Reason: Final completion of meiosis II will happen only at the time of fertilization xiii. Assertion: Lumbar puncture is done between L1 and L2 vertebra Reason: The dura and arachnoid along with subarachnoid space containing CSF extends upto 2nd sacral vertebra

• a) Both A and R are true, and R is the reason for A
• b) Both A and R are true, and R is not the reason for A
• c) A is correct but R is incorrect
• d) A is incorrect but R is correct

2.Part of fallopian tube where fertilization normally occurs

• a) Infundibulum
• b) Ampulla
• c) Isthmus
• d) Fimbriae

3.The ovum is surrounded by a non-cellular layer known as the

• a) Corona radiata
• b) Theca folliculi
• c) Zona pellucida
• d) Cumulus oophorus