Match the following mechanism of polyspermy (Column I) with events (Column II).

Column I	Column II
A. Fast block to polyspermy	i. chemicals from the fusing sperm cytoplasm alter the sodium ion (Na+) channels on the membrane
B. Slow block to polyspermy	ii. enzyme cortical granule serine protease, cleaves the protein posts that connect the vitelline envelope
	iii the concentration of free Ca2+ in the egg cytoplasm increases
	iv. an electric change in the egg cell membrane
	v. the concentration of free Na+ in the egg cytoplasm increases

Which of the following is correct?

TLS Online TPP Program

#Question id: 33370

#Unit 1. Molecules and their Interaction Relevant to Biology

T to R transition in Hemoglobin is analysed by

A. NMR

B. XRD

C. Soret region Uv-Vis spectroscopy

D. Circular Diachroism

TLS Online TPP Program

#Question id: 27927

#Unit 11. Evolution and Behavior

A functioning duplicate that becomes fixed in a population can meet one of several ultimate fates, except__

TLS Online TPP Program

#Question id: 6613

#General Aptitude

What is the next number ; 34, 7, 37, 14, 40, 28, 43,…

TLS Online TPP Program

#Question id: 155

#Unit 1. Molecules and their Interaction Relevant to Biology

Which amino acids are linked in phenylalanylglycine?

TLS Online TPP Program

#Question id: 210

#Unit 1. Molecules and their Interaction Relevant to Biology

Enzymes with vitamin B6 as the prosthetic group catalyze a variety of reactions involving