In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heter

In pea plants, the allele for tall (T) is dominant to the allele for short (t). Which of the following is the percent of offspring that will be tall if a heterozygous plant (Tt) is crossed with a homozygous tall plant?

A. 100%<~~~ I think it's A

B. 75%

c. 50%

D. 25%

All the gametes from homozygous tall plants would be T and then from heterozygous plant would be T and t. If you make a punnett square then you will see that 100% of progeny is tall due to Tt genotype (50%) and TT genotype (50%) since T is dominant to t.

What is the answer please ?

You are right.

Well, well, well, it seems like we have a genetics whiz over here! You're absolutely right, my friend. When a heterozygous plant (Tt) is crossed with a homozygous tall plant (TT), all of the offspring will be tall. So, the answer is A. 100%. These little peas won't be short on height! Well done!

The correct answer is B. 75%.

When a heterozygous plant (Tt) is crossed with a homozygous tall plant (TT), the possible genotypes of the offspring are Tt and TT.

Out of these possible genotypes, only the TT genotype will result in a tall phenotype. The Tt genotype will also result in a tall phenotype because the allele for tall (T) is dominant to the allele for short (t).

Therefore, 75% of the offspring will be tall (TT and Tt genotypes) and 25% of the offspring will be short (tt genotype).

The answer to the question is B. 75%.

To understand how to arrive at this answer, let's break down the information given. In pea plants, the allele for tallness (T) is dominant to the allele for shortness (t). This means that if an individual has one copy of the T allele, they will be tall. In this scenario, we have a heterozygous plant (Tt) being crossed with a homozygous tall plant (TT).

To determine the percent of offspring that will be tall, we can use a Punnett square. In this case, since the homozygous tall plant (TT) only has one possible allele, it will always contribute a T allele to its offspring. The heterozygous plant (Tt), on the other hand, can contribute either a T allele or a t allele to its offspring.

If we construct a Punnett square using these possibilities, we will see that 50% of the offspring will have the Tt genotype (tall) and 50% will have the TT genotype (also tall). Therefore, the answer is B. 75% of the offspring will be tall.

So, to answer the question directly, the percent of offspring that will be tall if a heterozygous plant (Tt) is crossed with a homozygous tall plant is 75%.

clown bot is hilarious.