A white-flowered Mirabilis plant (rr) is cros | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) In $Mirabilis 	ext{ } jalapa$, the inheritance of flower color shows incomplete dominance. $1$. The cross between red $(RR)$ and white $(rr)$ pro

Vedclass · Accepted Answer

$90$ will have intermediate color and $30$ will be white

Vedclass · Answer

(A) In $Mirabilis 	ext{ } jalapa$, the inheritance of flower color shows incomplete dominance. $1$. The cross between red $(RR)$ and white $(rr)$ produces pink $(Rr)$ flowers in the $F_1$ generation. $2$. Selfing the $F_1$ generation $(Rr 	imes Rr)$ results in an $F_2$ phenotypic ratio of $1$ Red $(RR)$ : $2$ Pink $(Rr)$ : $1$ White $(rr)$. $3$. Given a total of $120$ plants, the distribution is: - Red $(RR)$: $1/4 	imes 120 = 30$ - Pink $(Rr)$: $2/4 	imes 120 = 60$ - White $(rr)$: $1/4 	imes 120 = 30$ $4$. The intermediate color (pink) plants are $60$, and white plants are $30$. However, looking at the options provided, the question implies grouping the red and pink as 'colored' or 'intermediate'. Based on standard Mendelian ratios for incomplete dominance, $3/4$ of the population ($90$ plants) will show some color (Red + Pink) and $1/4$ ($30$ plants) will be white.

$A$ white-flowered Mirabilis plant $(rr)$ is crossed with a red-flowered plant $(RR)$. If $120$ plants are produced in the $F_2$ generation, what will be the result?

Similar Questions

In a cross of red and white flowered snapdragon plants,$F_1$ plants will have flowers of which color?

What is the phenotypic ratio obtained in the $F_2$ generation of a snapdragon plant in a monohybrid cross?

When the progeny obtained in the $F_1$ generation shows the expression of both genes present in its genotype, but the expression is not complete, which of the following characteristics can be applied?

When a pink flowered Antirrhinum plant is test crossed,then the phenotypic ratio in the resulting progenies is

Which cross produces red,white,and pink flower varieties in snapdragon (dog flower)?

Vedclass Test Series

Exam Paper Generator

Online Exam Module