TLS Online TPP Program

#Question id: 4723


The most common cause of the pleiotropic effect of gene is due to

#8. Inheritance Biology
  1. The same product of the given gene being involved in different metabolic pathways

  2. The gene making very different products in different cell types

  3. The DNA sequence of the gene getting changed in cell specific manner

  4. The gene not functioning in some cells

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TLS Online TPP Program

#Question id: 3281

#11. Evolution and Behavior

One population X has 750 AA, 0 Aa, and 250 aa; the other Y has 500 AA, 500 Aa, and 0 aa. After one generation of random mating, the genotype frequencies X and Y respectively if the population size remains 1,000.

TLS Online TPP Program

#Question id: 3282

#11. Evolution and Behavior

Natural selection results in different forms of plants which can survive in contaminated or uncontaminated soil. Type of natural selection is

TLS Online TPP Program

#Question id: 3284

#11. Evolution and Behavior

The fitness of three genotype are A1A1 < A1A2 = A2A2) Which of the following observation correct?

TLS Online TPP Program

#Question id: 3285

#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

#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

#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