Practice Questions

TLS Online TPP Program

#Question id: 775

The formation of microRNA is to:

#1. Molecules and their Interaction Relevant to Biology

serve as part of the structure of ribosome;
transfer amino acids from the cellular fluid to the ribosome for protein synthesis;
transfer genetic code to the ribosome for protein synthesis;
control genetic expression by turning some genes on and others off, thus controlling gene expression.

More Questions

TLS Online TPP Program

#Question id: 5234

#11. Evolution and Behavior

Which of the following would, if it had acted upon a gene, prevent this gene from acting as a reliable molecular clock?

TLS Online TPP Program

#Question id: 12720

#6. System Physiology – Plant

Several genes coding for enzymes associated with osmotic adjustment are turned on (up-regulated) by osmotic stress and/or salinity, and cold stress. These genes encode enzymes such as the following;

I) ∆′1-Pyrroline-5-carboxylate synthase, a key enzyme in the proline biosynthetic pathway

II) myo-Inositol 6-O-methyltransferase, a rate-limiting enzyme in the accumulation of the cyclic sugar alcohol called pinitol

III) Betaine aldehyde dehydrogenase, an enzyme involved in glycine betaine accumulation

Given following statements of gene encoding enzyme is correct?

TLS Online TPP Program

#Question id: 8859

#9. Diversity of Life Forms

In terms of food capture, which sponge cell is most similar to the cnidocyte of a Cnidarian

TLS Online TPP Program

#Question id: 11133

#7. System Physiology – Animal

Which of the following statements accurately describes a feature of temperature sensation by the nervous system?

TLS Online TPP Program

#Question id: 670

#1. Molecules and their Interaction Relevant to Biology

The distance along a helix axis for one complete turn is called the ________.