Practice Questions

TLS Online TPP Program

#Question id: 3837

How does the enzyme telomerase meet the challenge of replicating the ends of linear chromosomes?

#Unit 3. Fundamental Processes

It adds a single 5' cap structure that resists degradation by nucleases.
It causes specific double-strand DNA breaks that result in blunt ends on both strands.
It catalyzes the lengthening of telomeres, compensating for the shortening that could occur during replication without telomerase activity.
It adds numerous GC pairs, which resist hydrolysis and maintain chromosome integrity.

More Questions

TLS Online TPP Program

#Question id: 22020

#Unit 1. Molecules and their Interaction Relevant to Biology

Identify the given plot

TLS Online TPP Program

#Question id: 22021

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following expression is correct for affinity of enzyme for substrate KmS for irreversible reaction

TLS Online TPP Program

#Question id: 22022

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following expression is correct for affinity of enzyme for product KmP for irreversible reaction

TLS Online TPP Program

#Question id: 22023

#Unit 1. Molecules and their Interaction Relevant to Biology

Choose the correct equation for Haldane reversible reaction

TLS Online TPP Program

#Question id: 22024

#Unit 1. Molecules and their Interaction Relevant to Biology

Some of the statements regarding competitive inhibition are given below

a) The effect of a competitive inhibitor depends on the inhibitor concentration, the substrate concentration and the relative affinities of the substrate and the inhibitor for the enzyme.

b) if the substrate concentration is low, the degree of inhibition will be great.

c) the substrate concentration is high, then the degree of inhibition will be marked low

d) non-competitive inhibitor can combine with an enzyme molecule to produce a dead-end complex

Choose the incorrect statement

TLS Online TPP Program

#Question id: 22025

#Unit 1. Molecules and their Interaction Relevant to Biology

The Lineweaver-Burk equation in the presence of a competitive inhibitor will be: and Lineweaver-Burk plot showing the effect of competitive inhibition are shown

What will be the value of X and X’ for above graph