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TLS Online TPP Program

#Question id: 3294

Which one of these processes describes bottleneck effect?

#SCPH06 I Botany

  1. Chance events that change allele frequency

  2. alleles transferred to the next generation in portions that differ from previous generation

  3. transfer of alleles in and out of a population due to movement of fertile individuals

  4. sudden change in environments that alters gene frequency of a populationa

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TLS Online TPP Program

#Question id: 18386

#SCPH28 | Zoology

Biomagnification occurs mainly because of the following reasons
I. compounds are taken up from the environment and accumulated in the lipid deposits of body
II. organisms are consumed by other organisms in a non- sequential manner constituting the food chain
Which of the above statements are incorrect?
TLS Online TPP Program

#Question id: 3281

#SCPH28 | Zoology

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: 769

#SCPH28 | Zoology

MicroRNAs are developed from:
TLS Online TPP Program

#Question id: 11338

#SCPH28 | Zoology

The most plausible hypothesis to explain why species richness is higher in tropical than in temperate regions is that
TLS Online TPP Program

#Question id: 2640

#SCPH05 I Biotechnology

Which of these properties do not agree with trp operon attenuator?