Substituent group addition to toluene was not a single attack by succinyl-coa, but two separate reactions involving two molecules of acetyl-coa to give rise to the 

TLS Online TPP Program

#Question id: 5615

#Unit 5. Developmental Biology

The fast block to polyspermy is achieved by:

TLS Online TPP Program

#Question id: 5616

#Unit 5. Developmental Biology

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

TLS Online TPP Program

#Question id: 5617

#Unit 5. Developmental Biology

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

TLS Online TPP Program

#Question id: 5618

#Unit 5. Developmental Biology

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

TLS Online TPP Program

#Question id: 5619

#Unit 5. Developmental Biology

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

TLS Online TPP Program

#Question id: 5620

#Unit 5. Developmental Biology

Izumo binds to an oocyte protein called Juno. If eggs deficient in Juno