Assertion : In Mirabilis, selfing of F₁ pink flower plants produces same phenotypic & genotypi

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4.Principles of Inheritance and Variation

hard

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

Reason : Flower colour gene shows incomplete dominance.

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

If the Assertion is correct but Reason is incorrect.

If both the Assertion and Reason are incorrect.

(AIIMS-2014)

Solution

$F_2$ phenotypic and genotypic ratio in monohybrid cross involving incomplete dominance is

$\mathop 1\limits_{\mathop {RR}\limits_{(red)} } \,\,\,\,\,:\,\,\,\,\,\,\,\,\mathop 2\limits_{\mathop {Rr}\limits_{(pink)} } \,\,\,\,\,\,:\,\,\mathop {\,\,\,\,\,\,1}\limits_{\,\,\,\,\,\,\,\,\,\,\,\,\,\mathop {rr}\limits_{(white)} } $

Standard 12

Biology

Geno typic and phenotypic ration in the offspring is $1:2:1$ it explain the principle of

medium

In Antirrhinum two plants with pink flowers were hybridized. The $ F_1$ plants produced red, pink and white flowers in the proportion of $1$ red, $2$ pinkand $1$ white. What could be the genotype of the two plants used for hybridization ? Red flower colour is determined by $RR$, and white by $rr$ genes?

medium

(AIPMT-2010)

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)

In $F_2$ generation of monohybrid cross the cause of $1 : 2 : 1$ phenotypic ratio is

medium

What would be the colour of flowers in $F_1$ progeny as a result of a cross between homozygous red and homozygous white-flowered Snapdragon

medium

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

Solution

Similar Questions

Geno typic and phenotypic ration in the offspring is $1:2:1$ it explain the principle of

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

In $F_2$ generation of monohybrid cross the cause of $1 : 2 : 1$ phenotypic ratio is

What would be the colour of flowers in $F_1$ progeny as a result of a cross between homozygous red and homozygous white-flowered Snapdragon

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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.