EVOLUTION
EVIDENCE FOR EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A mutation in the homeobox genes of an organism could result in ____ Choose the correct answer.
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changes in the body plan of the organism
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an increase in random mutations over time
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changes to the organism’s shared common ancestor
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a reduction in diversity of body types of future organisms
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Explanation:
Detailed explanation-1: -One group of animal genes containing homeobox sequences is specifically referred to as Hox genes. This cluster of genes is responsible for determining the general body plan, such as the number of body segments of an animal, the number and placement of appendages, and animal head-tail directionality.
Detailed explanation-2: -Changes to Hox gene expression change a segment’s identity. For example the first segment of the thorax normally grows legs, the second grows legs and wings, and the third grows legs and halteres.
There is 1 question to complete.