Genes R and Y follow independent assortment. | vedclass

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

Question

(C) According to Mendel's Law of Independent Assortment,when two pairs of contrasting traits are considered simultaneously (dihybrid cross),the inheri

Vedclass · Accepted Answer

Phenotypic ratio $- 9: 3: 3: 1$

Vedclass · Answer

(C) According to Mendel's Law of Independent Assortment,when two pairs of contrasting traits are considered simultaneously (dihybrid cross),the inheritance of one pair of traits is independent of the other.In this cross,the parent generation $(P)$ consists of $RRYY$ (round yellow) and $rryy$ (wrinkled green).The $F1$ generation results in $RrYy$ (round yellow) individuals.When $F1$ individuals $(RrYy)$ are self-crossed,the gametes produced are $RY, Ry, rY,$ and $ry$.Using a Punnett square to cross these gametes,the resulting $F2$ phenotypic distribution is $9$ round yellow,$3$ round green,$3$ wrinkled yellow,and $1$ wrinkled green.Therefore,the phenotypic ratio is $9: 3: 3: 1$.

Genes $R$ and $Y$ follow independent assortment. If $RRYY$ produces round yellow seeds and $rryy$ produces wrinkled green seeds,what will be the phenotypic ratio of the $F2$ generation?

Similar Questions

$A$ pure breeding pea plant with round yellow seeds was crossed with a pea plant having wrinkled green seeds. On selfing of the $F_1$ hybrid of this cross,$64$ progenies were obtained in the $F_2$ generation. Find out the number of $F_2$ progenies showing non-parental characters.

What is the percentage of recessive gametes produced by $YyRr$ (in $\%$)?

Which genotype represents a true dihybrid condition?

In Mendel's dihybrid cross,what is the probability of obtaining a plant that is heterozygous for both traits (in $/16$)?

In an experiment on pea plant,pure plants with yellow round seeds $(YYRR)$ were crossed with plants producing green wrinkled seeds $(yyrr)$. What will be the phenotypic ratio of $F_1$ progeny?

Vedclass Test Series

Exam Paper Generator

Online Exam Module