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Question

Considering tallness and dwarfness, tallness is more widespread among pea plants because


A

Tallness is dominant over dwarfness.

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B

Tallness is determined by one gene having many effects.

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C

Tallness is determined by many genes having multiple effects.

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D

Only tall pea plants are selected for further plantation.

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Solution

The correct option is A

Tallness is dominant over dwarfness.


Tallness is a dominant trait and according to the law of dominance, recessive alleles will always be masked by dominant alleles. Therefore, the number of individuals with the dominant trait will be more in a population.


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