The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 14 gm to 16 gm. Which of the following natural selection operate on this species?

#Question id: 3324

#Unit 9. Evolution & Diversity of Life Forms

If only 20 males and 20 female grizzlies exist today, but only 10 of the males and 6 female breed, what are effective population size?

#Question id: 3325

#Unit 9. Evolution & Diversity of Life Forms

The frequency of the dominant red allele (R) in a population of diploid organisms is equal to the frequency of the recessive white allele (r). The frequency of red individuals assuming Hardy-Weinberg equilibrium is (express the frequency using decimal notation, not as a fraction or a percentage)

#Question id: 3326

#Unit 9. Evolution & Diversity of Life Forms

What are the assumptions of Hardy Weinberg equilibrium?

#Question id: 3327

#Unit 9. Evolution & Diversity of Life Forms

Birds that are brood parasites lay eggs in the nests of other birds. This is a successful strategy for the parasite only if

#Question id: 3328

#Unit 9. Evolution & Diversity of Life Forms

The fitness of a genotype is higher when it is rare in a population. Which of the following types of selection is most likely operating?

#Question id: 3329

#Unit 9. Evolution & Diversity of Life Forms

The following genotypes of one locus in population are given  - Genotype ( Number)

AA (120)  AB ( 30)  BB  (50) CC  (300)

AC  (400)  BC (100)

Which of the following is the correct frequency of C allele and A allele respectively?