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In a species of flowers red petals are dominant to orange petals. If two plants heterozygous for red petals are crossed what are the possible genotypes of the offspring

2 Answers

5 votes

Answer:Rr only

Step-by-step explanation:

User Littlee
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4 votes

Answer:

The possible genotypes of the offspring when two plants heterozygous for red petals are crossed is RO × RO → RR, OR, RO, OO or

1 homozygous for red petals, 2 heterozygous for red petals and 1 homozygous for orange petals.

Step-by-step explanation:

To solve the question, we note that

The red petals are dominant to the orange petals

Let R = Red and

O = Orange

Therefore we have

RO × RO

That is

R O

R RR OR

O RO OO

RO × RO → RR, OR, RO, OO

That is possible genotypes of the offspring when the heterozygous for red petals are crossed, RO × RO is RR, OR, RO, OO

Given one homozygous for red petals, two heterozygous for red petals and one homozygous for orange petals.

User OldWest
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