Question

In pea plants, the allele for tall plants is dominant while the allele for short plants is recessive, and the allele for purple flowers is dominant while the allele for white flowers is recessive. You cross a tall plant with purple flowers that is heterozygous for both traits with a plant that is short and homozygous for purple flowers. What is the expected phenotype ratio of the offspring of this cross?

Name: in pea plants the allele for tall plants is dominant while the allele for short plants is recessive and the allele for purple flowers is dominant while the allele for white flowers is recess 80798
Uploaded: 2023-03-07T18:03:08-08:00
Duration: 2 min 1 s
Channel: Sri K
Description: in pea plants the allele for tall plants is dominant while the allele for short plants is recessive and the allele for purple flowers is dominant while the allele for white flowers is recess 80798

          In pea plants, the allele
for tall plants is dominant while the
allele for short plants is recessive,
and the allele for purple flowers is
dominant while the allele
for white flowers is recessive. You
cross a tall plant with purple flowers that
is heterozygous for both traits with a
plant that is short and homozygous for purple flowers. 
What is the expected phenotype ratio of the offspring of
this cross?

Added by Sharon D.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Sri K

03/07/2023

Step 1

We know that the tall plant with purple flowers is heterozygous for both traits, so its genotype is TtPp. Show more…

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In pea plants, the allele for tall plants is dominant while the allele for short plants is recessive, and the allele for purple flowers is dominant while the allele for white flowers is recessive. You cross a tall plant with purple flowers that is heterozygous for both traits with a plant that is short and homozygous for purple flowers. What is the expected phenotype ratio of the offspring of this cross?