GATE (Graduate Aptitude Test in Engineering) Ecology: Questions 31 - 33 of 45

Access detailed explanations (illustrated with images and videos) to 45 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access, Unlimited Time, on Unlimited Devices!

View Sample Explanation or View Features.

Rs. 100.00 -OR-

How to register? Already Subscribed?

Question 31

Appeared in Year: 2019

Question

MCQ▾

A large proportion of individuals in a particular population of humans carry the allele for colour-blindness. Assuming colour-blindness does not confer any evolutionary advantage, which of the following mechanisms CANNOT explain the unusual abundance of this allele?

Choices

Choice (4)Response

a.

Purifying selection

b.

Genetic drift

c.

Founder effect

d.

Genetic hitchhiking

Question 32

Costs and Benefits of Group-Living

Appeared in Year: 2019

Question

MCQ▾

Which of the following is NOT a proximate explanation for group cohesion among animals?

Choices

Choice (4)Response

a.

Animals follow their nearest neighbor while foraging

b.

Animals follow a common path while foraging

c.

Animals secrete pheromones to attract conspecifics while foraging

d.

Animals reduce predation while foraging

Question 33

Plant-Animal Interactions

Appeared in Year: 2019

Question

MCQ▾

Which one of the statements below best describes a plant species with the timing of reproductive events shown in the following figure?

Timing of Reproductive Events Shown

Choices

Choice (4)Response

a.

The plant relies on diurnal and nocturnal pollinators

b.

The plant does not require animal pollinators

c.

The plant relies on nocturnal pollinators only

d.

The plant relies on diurnal pollinators only

Developed by: