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TLS Online TPP Program

#Question id: 4304

Using codon table, identify a 5′ → 3′ sequence of nucleotides in the DNA template strand for an mRNA coding for the polypeptide sequence Phe-Pro-Lys.

#Unit 3. Fundamental Processes

  1. 5-UUUCCCAAA-3

  2. 5-GAACCCCTT-3

  3. 5-CTTCGGGAA-3

  4. 5-AAACCCUUU-3

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TLS Online TPP Program

#Question id: 20294

#Unit 7. System Physiology – Animal

The rate-limiting step during the synthesis of all steroid hormones is done by which enzyme? 
TLS Online TPP Program

#Question id: 2876

#Unit 2. Cellular Organization

From the following set of statements regarding DNA topology, state whether each of the given statement is either True or False.

A.      The two strands of cccDNA can be easily separated without any breakage of bonds.

B.      Circular DNA molecules purified from bacteria and eukaryotes are usually negatively supercoiled.

C.      Interwound writhe and spiral writhe are topologically different.

D.      The organisms that live under extreme temperature conditions have been found to have positively supercoiled DNA.

E.      Negative supercoils can be thought of as a store of free energy that aids in processes that require strand separation.
TLS Online TPP Program

#Question id: 14738

#Unit 4. Cell Communication and Cell Signaling

Choose correct statements about Muscarinic receptors;
a. An acetylcholine analog, In activated condition, these receptors slow the rate of heart muscle contraction.
b .This type of receptor is coupled to a Gαi protein, and ligand binding leads to the opening of an associated K+ channel.
c .The subsequent influx of K+ ions from the cytosol causes an increase in the magnitude of the usual inside-negative potential across the plasma membrane that lasts for several seconds. 
TLS Online TPP Program

#Question id: 11556

#Unit 7. System Physiology – Animal

During mammalian labor and delivery, the contraction of uterine muscles is enhanced by oxytocin. This is an example of ________.
TLS Online TPP Program

#Question id: 894

#Unit 1. Molecules and their Interaction Relevant to Biology

When stress conditions arise, or when protein synthesis threatens to overwhelm the protein-folding capacity of the ER, unfolded proteins can accumulate. These conditions trigger the unfolded protein response (UPR)

a) unfolded protein response ensures to reduces the rate of protein synthesis by mTOR pathway

b) Amyloid aggregates that form before the UPR can come into play may be removed. Some are degraded by autophagy

c) Amyloid aggregates that can be removed by other mechanism such as lysosomal degradations

d)  UPR also bring the various systems into alignment by increasing the concentration of chaperones in the oxygen deprived conditions

Which of the following statements would be incorrect?