A researcher was able to artificially select for increased baying (barking) freq

Question

A researcher was able to artificially select for increased baying (barking) frequency in a population of beagles over four generations. Why he would ever do this I don't know. But from his positive result you know that: O A. The variation in baying frequency in the original population must have been primarily environmentally based OB. Beagle baying behavior must be adaptive for it to respond to selection in this way OC. Beagle baying frequency is likely to have higher variance in that population after 4 generations of selection than it had in the original population The variation in baying frequency within the original population must have had associated genetic variation OD.

Explanation / Answer

the researcher has done artificial selection which means he has chosen best beagles to bread and after 4 generation he has got increased barking frequency that means it must be genetic which has been pass out throughout the generation of beagles. Hence, option 4 is correct.

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