External fertilization in sea urchin-Developmental biology M.sc, BS Zoology in urdu hindi part #1
Channel: Aqib Biology
Date: 2023-04-16

A.A everyone:

In this lecture of external fertilization in sea urchin we discussed how sperm close to egg.
#externalfertilization
#seaurchin
#like


The gelly coat of egg release chemicals which bind receptor site of sperm and cause conformational changes in speerms like sperm motility and incease mitochondrial respiration. In this way fertilization occur in sea urchin
https://youtu.be/g3teCIC19HE
Role of Resact...........................................................................................
Resact is a 14 amino acid peptide which bind whith receptor site of sperm of Arabica puntulate and help the sperm move towards egg.

In this playlist ....................................................................................
https://youtu.be/g3teCIC19HE

The whole syllabus of developmental biology is present you can get notes from this slide.

Thank you 

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