TLS Online TPP Program

#Question id: 13171


Imagine some cosmic catastrophe jolts Earth so that its axis is perpendicular to the orbital plane between Earth and the sun. The most obvious effect of this change would be

#Unit 10. Ecological Principles
  1. The elimination of tides.
  2. An increase in the length of night.
  3. An increase in the length of a year.
  4. The elimination of seasonal variation
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TLS Online TPP Program

#Question id: 206

#Unit 1. Molecules and their Interaction Relevant to Biology

The reactive center of coenzyme A is

TLS Online TPP Program

#Question id: 891

#Unit 1. Molecules and their Interaction Relevant to Biology

The folding pathways of some proteins require two enzymes that catalyze isomerization reactions such as,

a) Peptide prolyl isomerase (PPI)  catalyzes the elimination of folding intermediates with inappropriate disulfide cross-links

b) Protein disulfide isomerase (PDI) enzyme that catalyzes the interchange, or shuffling, of disulfide bonds until the bonds of the native conformation are formed

c) Peptide prolyl cis-trans isomerase (PPI) catalyzes the interconversion of the cis and trans isomers of Proline residue peptide bonds

d) Peptide prolyl isomerase (PPI) can be a fast step in the folding of proteins that contain some Pro peptide bonds in the cis conformation

Which of the following combinations is correct about protein folding pathways?

TLS Online TPP Program

#Question id: 3498

#Unit 11. Evolution and Behavior

Assuming 5 offspring of each female, A Female lion with a well-nourished cub gains inclusive fitness by nursing a starving cub of a full sister by 5% loss to herself. What would be value of be benefit in percent (all offspring of recipient female die in case of no nursing)

TLS Online TPP Program

#Question id: 11351

#Unit 10. Ecological Principles

Which type of mutualism is demonstrated by plant-pollinator relationships?

TLS Online TPP Program

#Question id: 5825

#Unit 8. Inheritance Biology

__ are mutations that have no effect on the phenotype of the organism.