TLS Online TPP Program

#Question id: 806


A single-stranded DNA molecule contains 40 nucleotides with equal amounts of A, C, G, and T. This DNA strand can combine with a complementary DNA strand to form a double-stranded DNA molecule. Which characteristic does this double-stranded molecule have when it forms a B-DNA structure?

#Unit 1. Structure and Function of Biomolecules
  1. The two strands will have parallel orientation and identical sequences.

  2. The helix will be right-handed with 12 base-pairs per turn.

  3. Every base-pair will contain one purine and one pyrimidine.

  4. There are both covalent and non-covalent bonds between the two chains.

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TLS Online TPP Program

#Question id: 30071

#Unit 7. System Physiology – Animal

According to graph, match the following:

TLS Online TPP Program

#Question id: 30072

#Unit 7. System Physiology – Animal

Which of the following combination correctly represents A, B, C, & D?
i. Diastasis
ii. Atrial systole
iii. Isovolumic contraction
iv. Isovolumic relaxation

TLS Online TPP Program

#Question id: 30073

#Unit 7. System Physiology – Animal

Following graph represents volume and pressure in ventricles. According to graph which of the following events correctly represents A & B  respectively?


TLS Online TPP Program

#Question id: 30074

#Unit 2. Cellular Organization

Following statements were made about transposons:
A. Transposons have inverted terminal repeats and their integration generates inverted repeats at the flanks of the target site in the host genome.
B. A composite transposon can transpose as a unit.
C. The transposition event may cause deletions or inversions or move a host sequence to a new location.
D. The transposition event may cause deletions or inversions but cannot move a host sequence to a new location.
E. Replicative transposition proceeds through cointegration.

Which one of the following represents the combination of the correct statements?

TLS Online TPP Program

#Question id: 30075

#Unit 2. Cellular Organization

The enzyme that catalyzes the transposition of an IS element is called __________

TLS Online TPP Program

#Question id: 30076

#Unit 2. Cellular Organization

Direct repeats in the IS element are present __________