Following are key points about the effect of genetic drift:

A. Genetic drift is significant in small populations.

B. Genetic drift can cause allele frequencies to change in a pre-directed way.

C. Genetic drift can lead to a loss of genetic variation within populations.

D. Genetic drift can cause harmful alleles to become fixed.

Which one of the following combination of the above statements are true?

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#Question id: 3263

#Section 2: Evolution

From an evolutionary point of view, plant tendrils derived from leaves and those derived from stems are examples of

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#Question id: 3380

#Section 2: Evolution

Human population having mutant allele to caused color blindness, following different phenotype frequency?

Phenotype	Male	Female
Normal	.70	.72 heterozygous .49 homozygous
Colour blindness	.30	.09

Which of the following frequency of color blindness allele and color blind female in their population?

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#Question id: 9186

#Section 2: Evolution

A pathogenic fungus invades a plant. What does the infected plant produce in response to the attack?

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#Question id: 4698

#Section 2: Evolution

It has been observed that organisms on islands are different from, but closely related to, similar forms found on the nearest continent. This is taken as evidence that

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#Question id: 11357

#Section 4: Behavioural Ecology

In the Lotka-Volterra population models for predator and prey, what is the consequence of an increased birth rate of prey?