In a dihybrid cross between RRYY and rryy,the | vedclass

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

Question

(A) In a dihybrid cross,the $F_1$ generation obtained from crossing $RRYY$ and $rryy$ is $RrYy$.When $F_1$ individuals $(RrYy)$ are self-crossed to pr

Vedclass · Accepted Answer

$4$

Vedclass · Answer

(A) In a dihybrid cross,the $F_1$ generation obtained from crossing $RRYY$ and $rryy$ is $RrYy$.When $F_1$ individuals $(RrYy)$ are self-crossed to produce the $F_2$ generation,the phenotypic ratio is $9:3:3:1$.The genotypic ratio in the $F_2$ generation of a dihybrid cross is $1:2:1:2:4:2:1:2:1$.Specifically,the genotype $RrYy$ is a double heterozygote.In the Punnett square of a dihybrid cross,the frequency of the $RrYy$ genotype is $4$ out of $16$ total combinations.Therefore,the number of $RrYy$ genotypes in the $F_2$ generation is $4$.

In a dihybrid cross between $RRYY$ and $rryy$,the number of $RrYy$ $F_2$ genotypes will be

Similar Questions

$A$ heterozygous trihybrid plant produces .....

$A$ pure tall plant with green pods is crossed with a pure dwarf plant with yellow pods. How many dwarf plants will be produced out of $16$ in the $F_2$ generation?

When a tall plant with round seeds $(TTRR)$ is crossed with a dwarf plant with wrinkled seeds $(ttrr)$,the $F_1$ generation consists of tall plants with round seeds. How many types of gametes will the $F_1$ generation plant produce?

How many types of gametes will be produced by the offspring resulting from the cross $AABB \times aabb$?

In a dihybrid cross,when $F_1$ plants $(RrYy)$ are self-hybridized,what is the segregation ratio of yellow and green seeds in the $F_2$ generation?

Vedclass Test Series

Exam Paper Generator

Online Exam Module