TLS Online TPP Program

#Question id: 5215


What is it about short tandem repeat DNA that makes it useful for DNA fingerprinting?

#Unit 11. Evolution and Behavior
  1. The number of repeats varies widely from person to person or animal to animal.

  2. The sequence of DNA that is repeated varies significantly from individual to individual.

  3. The sequence variation is acted upon differently by natural selection in different environments.

  4. Every racial and ethnic group has inherited different short tandem repeats.

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TLS Online TPP Program

#Question id: 868

#Unit 1. Molecules and their Interaction Relevant to Biology

Which statements is incorrect about ‘The chaperonin-assisted catalysis of protein folding’

A. The non-cooperative nature of ATP binding establishes GroEL as an allosteric enzyme.

B. In GroEL with a total of 14 subunits in two heptameric rings are observed.

C. In vivo GroES is composed of seven identical subunits whilst GroEL is composed of 14 larger subunits.

D. Gro-EL being called chaperonin60 (cpn60) and Gro-ES chaperonin10 (cpn10).

TLS Online TPP Program

#Question id: 19053

#Unit 13. Methods in Biology

The principle on which thin layer chromatography is based is that the ____________

TLS Online TPP Program

#Question id: 2551

#Unit 2. Cellular Organization

Gaucher disease is the most common of lipid storage diseases in humans. It is caused by a deficiency of an enzyme necessary for the breakdown of lipids. This leads to the accumulation of fatty material in organs of the body including the spleen, liver, kidneys, lungs, brain, and bone marrow. Using your knowledge of the structure of eukaryotic cells, identify the statement below that best explains how internal membranes and the organelles of cells may be involved in Gaucher disease.

TLS Online TPP Program

#Question id: 33397

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following characterises domains

a. Highly conversed and may be common in most unrelated proteins.
b. They do not evolve.
c. Can function Independently.
d. Average 100 amino acids.
e. Single hydrophobic core.

TLS Online TPP Program

#Question id: 2051

#Unit 4. Cell Communication and Cell Signaling

In a thymectomized animal, which of the following is irradiated and reconstituted with bone marrow cells?