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TLS Online TPP Program

#Question id: 5205

Why is it preferable to use large computers and databases in searching for individual genes, rather than testing each sequence for possible function?

#Unit 11. Evolution and Behavior

  1. Testing for function would require too many cells.

  2. Testing for function would require knowing the species, its life stage, and its phylogeny.

  3. Testing for function would require knowing where a particular gene starts and ends and how it is regulated.

  4. Use of computer databases is intellectually less rigorous.

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TLS Online TPP Program

#Question id: 1281

#Unit 4. Cell Communication and Cell Signaling

Which of the following is the term used to describe a thin, sheet-like meshwork of extracellular matrix components that can be found in epithelial cells?
TLS Online TPP Program

#Question id: 639

#Unit 1. Molecules and their Interaction Relevant to Biology

Match the coenzymes in column I enzymes to class of enzymes in column II

A. Phosphofructokinase

1. Redox reaction

B. Enolase

2. Phosphoryl shift

C. Phosphoglycerate mutase

3. Dehydration

D. Glyceraldehyde 3 Phosphate dehydrogenase

4. Phosphoryl transfer

TLS Online TPP Program

#Question id: 12519

#Unit 6. System Physiology – Plant

Some given  statements about biosynthesis of Abscisic acid ;
a) ABA is synthesized in almost all cells that contain chloroplasts or amyloplasts
b) ABA is a 15-carbon terpenoid, or sesquiterpenoid, which is synthesized in plants by an indirect pathway via 40-carbon carotenoid intermediates
c) Cleavage of the carotenoid by the enzyme NCED (9-cis-epoxycarotenoid dioxygenase) is a rate-limiting
d) Oxidation by ABA-8′-hydroxylases lead to ABA inactivation, ABA can also be inactivated by conjugation, but this is irreversible. Both types of inactivation are also tightly regulated.
Which of the following  combination from the above statements  is correct?
TLS Online TPP Program

#Question id: 26481

#Unit 2. Cellular Organization

Which of the following are the characteristics of prokaryotic operator O1
a. Made up of 21-bp sequence 
b. It has twofold/dyad symmetry 
c. Recognized by two subunits of Lac repressor
d. On each O1 four unit of Lac repressor binds
TLS Online TPP Program

#Question id: 11034

#Unit 7. System Physiology – Animal

An increase in shear stress in a blood vessel results in which of the following changes?