At what time after 4 O’ clock, the hour and time minute hands will Lie opposite to each other ?

TLS Online TPP Program

#Question id: 5685

#Unit 5. Developmental Biology

Human sperm are allowed to fertilize ova having non- functional ovastacin. The following possibilities may be of significance in the fusion of these gametes:

A.        The sperms will not fertilize ova.

B.        The sperms will bind and penetrate the zona pellucida but will not be able to fuse with ovum membrane.

C.        ZP2 will not be clipped by cortical granule protease.

D.        CD9 protein of egg membrane microvilli will not be able to interact sperm membrane proteins in the absence of ovastacin.

E.         Polyspermy may occur frequently.

Which combination of statements represent the outcome of the above event?

TLS Online TPP Program

#Question id: 18645

#Unit 13. Methods in Biology

SDS PAGE separate molecules by size because the presence of SDS (sodium dodecyl sulphate) denatures the protein removing 2˚, 3˚ and 4˚ structures (they assume a linear chain) and the SDS coats the molecules giving them a uniform charge/mass ratio. In an experiment (SDS-PAGE) with a discontinuous buffer system following band pattern is obtained 

   

Choose the correct statement regarding this band pattern

TLS Online TPP Program

#Question id: 14522

#Unit 13. Methods in Biology

A sample space has two events A and B such that probabilities  

TLS Online TPP Program

#Question id: 32405

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the statement is correct 

TLS Online TPP Program

#Question id: 11491

#Unit 2. Cellular Organization

What is the “signature sequence” that is highly conserved in all K+ channels?