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Chapter:

evolution


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3. The change in allele frequencies takes place when evolutionary forces act on a population. Which of following is not an evolutionary force?


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4. In a population of 100 rabbits 40 are short-eared. Short ears are recessive to long ears. There are only two alleles for this gene. Long eared are 60 which are in 1:1 ratio of homozygous and heterozygous. Find out dominant allelic frequency?


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5. There are several compelling pieces of scientific evidence that support occurrence of evolution. Answer following questions using choices provided. Each of following terms may be used once, more than once, or not at all.
The presence of cytochrome P450 in all living organisms, as well as DNA and RNA are examples of this type of evidence for evolution.