What is the probability that two heterozygous tall pea plants will produce a tall or short offspring?

The “TT” and “Tt” crosses both have at least one “T” allele, so they are tall plants. However, the last cross “tt” doesn’t have any “T” alleles and is short, because it is homozygous recessive . Since 1 out of 4 pea plants are short, or 1/4, the probability of a short pea plant from a heterozygous cross is 25\%.

What is the percentage of heterozygous tall pea plants?

50\% heterozygous tall pea plants would be obtained in F2 generation when tall heterozygous pea plants are selfed.

What is the ratio of cross between heterozygous tall pea plant and dwarf plant?

So, when a heterozygous tall plant is crossed with the dwarf plant then the progeny obtained would be in the ratio 1:1 where half of them would be tall and the other half would be dwarf.

When two heterozygous tall pea plants are crossed what would the expected?

Biology Genetics Review

Question	Answer
When two heterozygous tall pea plants are crossed, the expected genotype ratio of the offspring is _________________________.	1:2:1
An organism’s gametes have ____________________ the number of chromosomes found in the organism’s body cells.	half

What is the probability that two parents heterozygous for both height and flower color will produce tall offspring with purple flowers?

Two pea plants, both heterozygous for flower color, are crossed. The offspring will show the dominant purple coloration in a 3:1 ratio. Or, about 75\% of the offspring will be purple.

What is the percentage of homozygous and heterozygous?

One parent is Aa and the other is aa: Their child has a 50 percent chance of being Aa (heterozygous) and a 50 percent chance of being aa (homozygous). One parent is Aa and the other is AA: Their child has a 50 percent chance of being AA (homozygous) and a 50 percent chance of being Aa (heterozygous).

What is the percentage of F2 homozygous and heterozygous?

50\% are homozygous and 50\% heterozygous out of the homozygous population 25\% is homozygous dominant and 25\% homozygous recessive.

When heterozygous tall plants TT of F1 generation are crossed with pure dwarf plants TT the phenotype ratio for tall dwarf is?

3: 1
In the F1​ generation all plants were tall. These tall plants of F1​ generation were selfed and the ratio of tall to dwarf plants obtained was 3: 1.

When the heterozygous tall plant crossed with homozygous dwarf plant the progeny obtained in the ratio of?

The heterozygous tall (Tt) plant is crossed with a homozygous dwarf (tt) plant. Thus the ratio of progeny will be 1:1.