Q. The granules present beneath the plasma membrane of oocyte cells are called …A… These granules fuses with the plasma membrane of oocyte and releases their content including …B… between the …C… and zona pellucida. This ensures the …D… . Here A, B, C and D refers to
A) A-monospermy, B-plasma membrane, C-corticle enzyme, D-corticle granules
B) A- corticle granule, B- corticle enzyme, C- plasma membrane, D- monospermy
C) A- corticle enzyme, B- corticle granules, C- plasma membrane, D- monospermy
D) A- corticle enzyme, B- corticle granules, C- monospermy, D- plasma membrane
Explanation
A-Corticle granules, B-Corticle enzyme, C-Plasma membrane, D-Monospermy. Ovum at the time of fertilization looks like [image:3_image56.png] Steps $A,B,C$ and $D$ can be seen as [image:3_image57.png] A-Sperm passes through corona radiate, B-Acrosome reaction, releasing lysing enzyme, C-Sperm passes through pellucida and reaches oolemma. D-Sperm and egg plasma membranes fuse, enabling the sperm contents to enter egg. E-Cortical reaction, releasing enzymes to harden zona pellucida
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.