Using incomplete dominance, determine the F2 genotype and phenotype ratios from crossing pure red and pure…

Question

Using incomplete dominance, determine the F2 genotype and phenotype ratios from crossing pure red and pure white flowers. Also, address the "wrinkled number" aspect.

ScanSolve AI Tutor · Accepted Answer

Here are the solutions for the F2 generation based on the information provided in question 10:

Question 10 (b) (i) Genotype ratio

Recall the F1 generation genotype is $RW$ (pink flowers) from the cross of pure red ( $RR$ ) and pure white ( $WW$ ) plants, indicating incomplete dominance.
Self-cross the F1 generation
$RW \times RW$ .
Use a Punnett square to determine the F2 genotypes
Gametes R W
R RR RW
W RW WW
Count the genotypes.
The genotype ratio is $1 RR : 2 RW : 1 WW$
The genotype ratio is $\boxed{1:2:1}$ .

Question 10 (b) (ii) Phenotype ratio
Based on incomplete dominance, the genotypes correspond to the following phenotypes
$RR$ = Red flowers
$RW$ = Pink flowers
$WW$ = White flowers
Use the genotype ratio from (i) to determine the phenotype ratio.
$1 \text{ Red} : 2 \text{ Pink} : 1 \text{ White}$
The phenotype ratio is $\boxed{1:2:1}$ .

Question 10 (b) (iii) Wrinkled number
The provided problem describes flower color (red, white, pink) and does not contain any information about "wrinkled" characteristics or numbers. Therefore, this question cannot be answered with the given information.

Using incomplete dominance, determine the F2 genotype and phenotype ratios from crossing pure red and pure white flowers. Also, address the "wrinkled number" aspect.

Step-by-step solution

Recall the F1 generation genotype is $RW$ (pink flowers) from the cross of pure red ( $RR$ ) and pure white ( $WW$ ) plants, indicating incomplete dominance.

Self-cross the F1 generation

Use a Punnett square to determine the F2 genotypes

Count the genotypes.

Based on incomplete dominance, the genotypes correspond to the following phenotypes

Use the genotype ratio from (i) to determine the phenotype ratio.

Still stuck on this one?

More Biology Questions

Gametes	R	W
R	RR	RW
W	RW	WW

Using incomplete dominance, determine the F2 genotype and phenotype ratios from crossing pure red and pure white flowers. Also, address the "wrinkled number" aspect.

Step-by-step solution

Recall the F1 generation genotype is RWRWRW (pink flowers) from the cross of pure red (RRRRRR) and pure white (WWWWWW) plants, indicating incomplete dominance.

Self-cross the F1 generation

Use a Punnett square to determine the F2 genotypes

Count the genotypes.

Based on incomplete dominance, the genotypes correspond to the following phenotypes

Use the genotype ratio from (i) to determine the phenotype ratio.

Still stuck on this one?

More Biology Questions

Recall the F1 generation genotype is $RW$ (pink flowers) from the cross of pure red ( $RR$ ) and pure white ( $WW$ ) plants, indicating incomplete dominance.