A plant with red flowers was crossed with another plant with yellow flowers. If F₁ showed al

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4.Principles of Inheritance and Variation

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A plant with red flowers was crossed with another plant with yellow flowers. If $F_1$ showed all flowers orange in colour, explain the inheritance.

Option A

Option B

Option C

Option D

Solution

This is due to the incomplete dominance as the $F_{1}$ do not resemble either of the two parents and is in between the two. As there is blending of traits.

Standard 12

Biology

${F_1}$ hybrid is intermediate between the two parents. The phenomenon is

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$RR$ $(Red)$ is crossed with $ww$ $(white)$, all the $Rw$ offsprings are pink. This is an indication that $R$ gene is

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A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?

medium

(NEET-2024)

Assertion : In Mirabilis, selfing of $F_1$ pink flower plants produces same phenotypic & genotypic ratio.

Reason : Flower colour gene shows incomplete dominance.

hard

(AIIMS-2014)

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in $\mathrm{F}_{1}$ generation, pink flowers were obtained. When pink flowers were selfed, the $\mathrm{F}_{2}$ generation showed white, red and pink flowers.

Choose the incorrect statement from the following

easy

(NEET-2019)

A plant with red flowers was crossed with another plant with yellow flowers. If $F_1$ showed all flowers orange in colour, explain the inheritance.

Solution

Similar Questions

${F_1}$ hybrid is intermediate between the two parents. The phenomenon is

$RR$ $(Red)$ is crossed with $ww$ $(white)$, all the $Rw$ offsprings are pink. This is an indication that $R$ gene is

A pink flowered Snapdragon plant was crossed with a red flowered Snapdragon plant. What type of phenotype/s is/are expected in the progeny?

Assertion : In Mirabilis, selfing of $F_1$ pink flower plants produces same phenotypic & genotypic ratio. Reason : Flower colour gene shows incomplete dominance.

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in $\mathrm{F}_{1}$ generation, pink flowers were obtained. When pink flowers were selfed, the $\mathrm{F}_{2}$ generation showed white, red and pink flowers. Choose the incorrect statement from the following

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Assertion : In Mirabilis, selfing of $F_1$ pink flower plants produces same phenotypic & genotypic ratio.

Reason : Flower colour gene shows incomplete dominance.

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in $\mathrm{F}_{1}$ generation, pink flowers were obtained. When pink flowers were selfed, the $\mathrm{F}_{2}$ generation showed white, red and pink flowers.

Choose the incorrect statement from the following