Concept explainers
To determine:
Weather a porsimian or an old world monkey will have a pattern of transposons and pseudo-genes that is closer to that of human.
Introduction:
Transposon is a stretch of DNA that can change its position within the genome of a single cell. They are known as jumping genes. Pseudo-genes are the genes that have lost their functionality. They have lost their gene expression.
Explanation of Solution
Consider the classification of primates during evolution. In evolution different levels are given to different organism on the basis of their evolution. So in the evolution of primate’s old world monkey share a close relationship with humans whereas porsimian are the farthest organism from humans in evolution chart of primates.
Old world monkey will have similar transposons and pseudo genes similar to humans because somehow in the past humans are evolved from the old world monkey. In evolution some genes get deleted from the sequence of organisms or the gene loses its function. So when humans are evolved from these monkeys, may be some genes are deleted from the sequence of old world monkey.
Chimpanzee and human transposons are exactly similar; old world monkey is closely related to the chimpanzee so it is possible for old world monkey to have the similar transposons which the humans have.
So, old world monkey can have similar transposons and pseudo-genes that are closer to humans.
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Chapter 30 Solutions
Biology
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