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20 votes
20 votes
I NEEEDDD HELP PLEASE

I NEEEDDD HELP PLEASE-example-1
User Johan Soderberg
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2.7k points

2 Answers

20 votes
20 votes
25%
A red flowered Snapdragon(RR) is crossed to white flowered Snapdragon(rr). The F1 individuals are Pink flowered(Rr). When F1 individuals are self crossed, in the F2 generation, 1 plant with red flowers(RR-25%), 2 plants with pink flowers(Rr-50%), 1 plant is with white flowers(rr-25%) are formed. The phenotypic ratio is 1:2:1 and genotypic ration is 1:2:1.
So, the correct option is ‘25%’.
User Don McCaughey
by
2.4k points
23 votes
23 votes

Answer:

the second answer choice

25% red, 50% pink, and 25% white

Step-by-step explanation:

construct a punnett square with the genotype RW and cross them to get genotypes of RR, RW, RW, and WW.

RR is red and occurs once so that is a 25% chance (1/4)

RW is pink and it occurs twice so that is 50% (2/4)

WW is white which occurs once and it is another 25% (1/4)

User Derek Wang
by
3.1k points
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