Genetic drift in a small population for multiple generations can significantly affect the composition of a population’s gene pool. Following some observation are given for reason of Genetic drift?

A) Small populations are threatened by a loss of genetic variability. This loss may be caused by inbreeding, genetic drift, and limited mating.

B) Sampling error can arise is through the founder effect, which is due to the limited matting within population

C) Genetic drift arises is through a genetic bottleneck, which develops when a population undergoes a drastic reduction in population size.

D) Variance in allele frequency due to genetic drift will be maximal when one allele is very rare and the population size is small.

Which of the above observation are true?

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#Question id: 14505

#Unit 13. Methods in Biology

Two cards are drawn with replacement from a well shuffled deck of 52 cards. The mean and standard deviation for the number of aces are

Probability distribution table

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#Question id: 14506

#Unit 13. Methods in Biology

In a Binomial distribution, the mean and standard deviation are 12 and 2 respectively. The values of n and p are respectively.

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#Question id: 14507

#Unit 13. Methods in Biology

For a biased die the probabilities for different faces to turn up are given below.

The die is tossed and you are told that either face 1 or face 2 has turned up. The probability that it is face 1 is

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#Question id: 14508

#Unit 13. Methods in Biology

There are three events A, B and C, one of which must occur and only one can happen, the odds are 8 to 3 against A, 5 to 2 against B; find the probability of C.

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#Question id: 14509

#Unit 13. Methods in Biology

Aishwarya studies either computer science or mathematics everyday. If she studies computer science on a day, then the probability that she studies mathematics the next day is 0.6. If she studies mathematics on a day, then the probability that she studies computer science the next day is 0.4. Given that Aishwarya studies computer science on Monday, what is the probability that she studies computer science on Wednesday ?

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#Question id: 14510

#Unit 13. Methods in Biology

The probability that the birthday of a child is Saturday or Sunday is