In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carriers. What is the probability that a child will be albino if: Both parents are non-albino members of Generation 2?

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#Question id: 14850

#Unit 13. Methods in Biology

A bag contains 2 white and 3 black balls. A ball is drawn 5 times, each being replaced before another is drawn. Find the probability that exactly 4 of the balls drawn are white.

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#Question id: 14848

#Unit 13. Methods in Biology

A bag contains 8 green and 10 white balls. Two balls are drawn. What is the probability that one is green and the other is white ?

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#Question id: 14844

#Unit 13. Methods in Biology

An urn contains 25 balls numbered 1 through 25. Two balls are drawn from the urn with replacement. The probability of getting at least one odd is

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#Question id: 14775

#Unit 13. Methods in Biology

A bag contains 3 black and 5 white balls. One ball is drawn from the bag. What is the probability that the ball is not black ?

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#Question id: 14698

#Unit 13. Methods in Biology

A bag has 13 red, 14 green and 15 black balls. The probability of getting exactly 2 blacks on pulling out 4 balls is P1. Now the number of each colour ball is doubled and 8 balls are pulled out.The probability of getting exactly 4 blacks is P2. Then

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#Question id: 14696

#Unit 13. Methods in Biology

Urn A contains 6 red and 4 black balls and urn B contains 4 red and 6 black balls, one ball is drawn at random from urn A and placed in urn B. Then one ball drawn at random from urn B and placed in urn A. If one ball is now drawn from urn A, the probability that it is found to be red is