GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is an example of genetic variation?
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One child has blue eyes and the other has brown eyes.
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One child has a scar and the other does not.
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One child eats meat and the other is a vegetarian.
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One child is older than another.
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Explanation:
Detailed explanation-1: -People with blue eyes have one allele of the gene for eye color, whereas people with gray eyes will have a different allele of the gene. This is an example of gene variation. So, the correct answer is option A.
Detailed explanation-2: -Examples of genetic variation include eye color, blood type, camouflage in animals, and leaf modification in plants.
Detailed explanation-3: -Mutation, gene flow, sexual reproduction, random mating between organisms, random fertilization, and crossing over are the main cause of genetic variation. Genetic variation along with environmental variation causes phenotypic variation in a population. An example of phenotypic variation is the height of a plant.
There is 1 question to complete.