TLS Online TPP Program

#Question id: 4210


Which statement is true about the attenuation mechanism of regulation?

#Unit 3. Fundamental Processes
  1. Eukaryotes lack this mechanism because transcription and translation occur in different parts of the cell.

  2. Attenuation is the modern term for repression in prokaryotes.

  3. It is a form of regulation at the level of transcription, thereby preventing any translation.

  4. Attenuation is the most common type of regulation found in plants.

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TLS Online TPP Program

#Question id: 3364

#Unit 11. Evolution and Behavior

Which of the following equations represents the corresponding equilibrium for a locus with three alleles p, q and r of diploid individuals? (P, Q and R represent the frequencies of p, q and r, respectively)

TLS Online TPP Program

#Question id: 3365

#Unit 11. Evolution and Behavior

Consider a population of 10,000 individuals, of which 2500 are homozygotes (PP) and 3000 are heterozygotes (Pp) genotype. The frequency of allele p in the population is

TLS Online TPP Program

#Question id: 3366

#Unit 11. Evolution and Behavior

Red-Green color blindness is an X-linked recessive disorder. In a population which is in the Hardy-  Weinberg equilibrium, the incidence of occurrence of this in males is 2:2000. What will be the expected incidence of affected homozygous females?

TLS Online TPP Program

#Question id: 3367

#Unit 11. Evolution and Behavior

The largest unit within which gene flow can readily occur is a

TLS Online TPP Program

#Question id: 3368

#Unit 11. Evolution and Behavior

The origin of a new plant species by hybridization, coupled with accidents during nuclear division, is an example of

TLS Online TPP Program

#Question id: 3369

#Unit 11. Evolution and Behavior

Genetic drift refers to random changes in allele frequencies over time leads to following consequence

a. Loss of genetic diversity per generation   

b. change in allelic frequency just by chance 

c. It caused adaptive evolution

d. It one allele may reach to 0 frequency