TLS Online TPP Program

#Question id: 1003


The glucose-alanine cycle provides ________.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. an alternate site for production of urea in the kidney

  2. transport of important enzymes for gluconeogenesis

  3. an indirect means for muscle to eliminate nitrogen and replenish its energy supply

  4. a cycle for the direct synthesis of carbohydrates in muscle

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TLS Online TPP Program

#Question id: 16316

#Unit 7. System Physiology – Animal

Psychology stress:

TLS Online TPP Program

#Question id: 3555

#Unit 8. Inheritance Biology

In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is cross with the heterozygous for bitter and no spots, what phenotypes ratio are expected in the offspring?

TLS Online TPP Program

#Question id: 8702

#Unit 9. Diversity of Life Forms

The question refers to the following table, which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate its distance from the promoter (for example, Intron I is the one closest to the promoter). The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A.

Regarding these sequence homology data, the principle of maximum parsimony would be applicable in ________.

TLS Online TPP Program

#Question id: 2181

#Unit 2. Cellular Organization

What is the expected effect on salt accumulation in the plant vacuole of a mutation in the plant vacuolar ATPase that decreases the H+ concentration in the vacuole?

TLS Online TPP Program

#Question id: 31161

#Unit 7. System Physiology – Animal

During the action potential, membrane potential moves toward the equilibrium potential for Na+ but does not reach it because: