TLS Online TPP Program

#Question id: 4711


Starting from the wild mustard Brassica oleracea, breeders have created the strains known as Brussels sprouts, broccoli, kale, and cabbage. Therefore, which of the following statements is correct?

#Section 2: Evolution
  1. In this wild mustard, there is enough heritable variation to permit these different varieties.

  2. Heritable variation is low in wild mustard—otherwise this wild strain would have different characteristics.

  3. Natural selection is rare in wild populations of wild mustard.

  4. In wild mustard, most of the variation is due to differences in soil or other aspects of the environment.

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TLS Online TPP Program

#Question id: 10592

#Section 2: Evolution

Given below are the steps to assess the population size of grasshoppers in a given area, the size of the population is estimated as follows


Which of the following correct combination of parameter?

TLS Online TPP Program

#Question id: 10594

#Section 2: Evolution

Which of the following is not characteristic of ruderal species?

TLS Online TPP Program

#Question id: 10595

#Section 2: Evolution

If the per capita birth rate (b) and per capita death rate (d) in one year is 0.80 and 0.20 respectively. if the initial population size is 600, what will be net change (dN) in population size in one year

TLS Online TPP Program

#Question id: 10596

#Section 2: Evolution

In a experimental population the birth rate is 18 per 1000 and death rate is 14 per 1000. Size of population is 10,000 at time t then what will be size of population at time t+1?

TLS Online TPP Program

#Question id: 10597

#Section 2: Evolution

Growth model of logistic with 1000 carrying capacity and exponential with ideal condition is related to initial population.  Growth rate was observed at population density of 100, 200, 500 and 1000. Following observation is correct?

TLS Online TPP Program

#Question id: 10598

#Section 2: Evolution

In a wild life reserve, we have two species of mammal. Species A reproduce thrice a year and produced 6-10 offspring per litter. Species B reproduce once in 2-3 year and produced 1-2 offspring during each cycle of reproduction. Which of the following statement is true?