One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is

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#Question id: 14847

#Unit 13. Methods in Biology

How many different words can be formed from the letters of the word Ganeshpuri when all the letters taken

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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: 14849

#Unit 13. Methods in Biology

Fifteen coupons are numbered 1, 2, 3, …….., 15. Seven coupons are selected at random one at a time with replacement. The probability that the largest number appearing on selected coupon is 9, is

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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: 14851

#Unit 13. Methods in Biology

From a pack of 52 cards two are drawn at random. The probability that one is a king and the other a queen is

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#Question id: 14852

#Unit 13. Methods in Biology

In three throws of two dice, the probability of throwing doublets not more than two times is