If tall is dominant over short (considering plant height), what will be the height of the plant when both, the dominant and the recessive alleles are present?

Tall

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Short

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Medium

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Random

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Solution

The correct option is A Tall
When both, the dominant and the recessive alleles are present, the dominant allele is always expressed.
Example-'Tt' has both, the dominant and the recessive alleles. In such cases, the dominant allele is always expressed.
In the given example, as tallness is dominant over short height of plant, the resultant plant in the F1 generation will be tall.

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Similar questions

Q. When height of a plant is considered, tall is dominant over short. Which character will be expressed, when both the dominant and the recessive alleles are present in the plant?

Q. If tall is dominant over short, then which of the following character will be expressed when both the dominant allele and recessive allele are present?

Q. A cross between a tall plant (TT) and short plant (tt) resulted in progeny that were all tall plants because :
(a) tallness is the dominant trait
(b) shortness is the dominant trait
(c) tallness is the recessive trait
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Q. In pea plants, tall plants are dominant over short plants. If two heterozygous tall plants are crossed, what percent of the offspring will be short?

Question 3
A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because

(a) tallness is the dominant trait
(b) shortness is the dominant trait
(c) tallness is the recessive trait
(d) height of pea plant is not governed by gene ‘T’ or ‘t’

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