According to IUCN red list criteria , a species would be classified on the basis of following criteria are a- >50 decline in population during last 10 year b-occur in area less than 20,000 sq km c- total adult population less than 2500 Above observation which of the following class of IUCN

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#Question id: 5614

#SCPH01 Biochemistry

One difference between the blastula and gastrula stages of development is that

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#Question id: 5615

#SCPH01 Biochemistry

The fast block to polyspermy is achieved by:

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#Question id: 5616

#SCPH01 Biochemistry

In the sperm the elevated Ca2+ level in a relatively basic cytoplasm triggers

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#Question id: 5617

#SCPH01 Biochemistry

In sea urchins and mammals, the rise in Ca2+ concentration responsible for the cortical granule reaction is due to

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#Question id: 5618

#SCPH01 Biochemistry

Mouse cumulus cells also secrete a substance that attracts sperm and hyperactivates them through calcium ion channels. The substance is

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#Question id: 5619

#SCPH01 Biochemistry

Acrosome intact- sperm and acrosome reacted- sperm bind to which of the zona protein respectively?