Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 55704
TLS Online TPP Program

#Question id: 10280

The enzyme of glycolytic pathway that forms fructose 1,6-bisphosphate is called phosphofructokinase-1 (PFK-1), which statements can’t distinguish it from a second enzyme (PFK-2) Phosphofructokinase-2.

#Unit 6. System Physiology – Plant
  1. PFK-2 that catalyzes the formation of fructose 2,6-bisphosphate from fructose 6-phosphate rather than fructose 1,6-bisphosphate in a separate pathway
  2. PFK-2 activity is regulated by phosphorylation while the PFK-1 activity is regulated by high conc of ATP and NADH etc
  3. more important regulator of plant glycolysis is the cytosolic concentration of PEP, which is an Activator of the plant ATP-dependent PFK-1 and inhibitor of PFK-2
  4. fructose 2,6-bisphosphate activates PFK-1 by increasing its apparent affinity for fructose 6-phosphate
More Questions
TLS Online TPP Program

#Question id: 3285

#Unit 11. Evolution and Behavior

Natural selection continually operates on each species to keep up with improvements made by competing species; each species’ environment deteriorates as its competitors evolve new adaptations. This is known as
TLS Online TPP Program

#Question id: 3286

#Unit 11. Evolution and Behavior

 In a human population, the gene frequencies of the alleles for the ABO system are as follows:

A = 29%                         B = 7%                                    0=64%

Assuming complete random mating and Hardy-Weinberg equilibrium,

What are the blood type A frequencies in this population?
TLS Online TPP Program

#Question id: 3287

#Unit 11. Evolution and Behavior

Which statement is not an assumption of the Hardy–Weinberg law?

a. The allelic frequencies (p and q) are equal.

b. The population is randomly mating.

c. The population is large.

d. Locus is di-allelic
TLS Online TPP Program

#Question id: 3291

#Unit 11. Evolution and Behavior

Which of the following is the most predictable outcome of increased gene flow between two populations?
TLS Online TPP Program

#Question id: 3292

#Unit 11. Evolution and Behavior

Which of the following is correct observation?
TLS Online TPP Program

#Question id: 3293

#Unit 11. Evolution and Behavior

In a Hardy-Weinberg population of butterflies find that 32% are heterozygous at a particular locus. What should be the frequency of the homozygous individuals in this population?