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.

no

To determine the percent of offspring that will be tall in a cross between a heterozygous plant (Tt) and a homozygous tall plant (TT), you would need to use a Punnett square.

First, let's identify the possible gametes for each parent:

- The homozygous tall plant (TT) will produce only one type of gamete, which is T.
- The heterozygous plant (Tt) will produce two types of gametes, which are T and t.

Now, let's create a Punnett square using these gametes:

```
| T | T
---------------
T | TT | TT
---------------
t | Tt | Tt
---------------
```

From the Punnett square, you can see that 100% of the offspring will have the genotype Tt, which corresponds to being tall. This means that the answer is A. 100%.

The reason for this is that the allele for tall (T) is dominant to the allele for short (t). This means that even if an individual has one copy of the tall allele (T) and one copy of the short allele (t), they will still exhibit the tall phenotype.