TLS Online TPP Program

#Question id: 78


Which is true about naturally occurring monosaccharides?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. The L-isomers predominate.

  2. The D-isomers predominate.

  3. The L and D-isomers occur in equal ratios.

  4. The ratio of L and D-isomers varies widely depending on the source.

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TLS Online TPP Program

#Question id: 12586

#Unit 10. Ecological Principles

A biome with dry and rainy seasons, trees in patches, and ground cover of tropical bunchgrass is called a

TLS Online TPP Program

#Question id: 17807

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: Both parents are non-albino members of Generation 2?

TLS Online TPP Program

#Question id: 1248

#Unit 4. Cell Communication and Cell Signaling

By what mechanism does PI-3 phosphate promote activation of protein kinase B (PKB)?

a. recruiting PKB to the plasma membrane

b. recruiting the activating kinase PDK1 to the plasma membrane

c. releasing inhibition of the catalytic site by the PH domain

d. by the activation of FOXO3A

TLS Online TPP Program

#Question id: 23525

#Unit 1. Molecules and their Interaction Relevant to Biology

Biodiversity is an abbreviation of

TLS Online TPP Program

#Question id: 5293

#Unit 8. Inheritance Biology

The two strains a and b are tested for being auxotrophic for the following nutritional mutations: pyridoxine (pdx), biotin (bio), methionine (met), adenine (ade), and para-aminobenzoic acid (pab). Growth is indicated by ( + ) and lack of growth by ( - ). From these tests, what is genotype of strain a and b respectively (+ indicate prototroph while other auxotroph)?