# When two hybrids RRTT and RRTT are producing gametes the gametes are?

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1:1:1:1.

1 : 2 : 1.

## When hybrids are crossed the genotypic ratio of the expected offspring would be?

A cross of two F1 hybrids, heterozygous for a single trait that displays incomplete dominance is predicted to give a 1:2:1 ratio among both the genotypes and phenotypes of the offspring.

## What is the phenotype of TTRr?

Let the gene for red-flowered be represented by ‘R’ and that of white-flowered be represented by gene ‘r’. Then, the genotypes of the parents would be Heterozygous tall, red-flowered- TTRr and Homozygous dwarf, white-flowered – ttrr.

## Which one of the following crosses show phenotypic ratio of 3 1?

To get 3:1 ratio i.e., 3+1=4 zygotes either both parents should produce 2 gametes each or one parent should produce 4 and other one gamete.

Question : Which one of the following crosses shows phenotypic ratio of 3:1?

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Question Which one of the following crosses shows phenotypic ratio of 3:1?
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## When AaBb is crossed with AaBb the offspring will be?

When Aabb and aaBb are crossed together the gametes formed are Ab, ab, and aB, ab. The offspring produced by these gametes are AaBb, Aabb, aaBb, and aabb. In all these four offsprings there are no similarities found in their genotype. So, their genotypic ratio will be 1: 1: 1: 1.

1 : 2 : 2 : 1.

## What type of cross produces a 1 1 1 1 phenotypic ratio?

In the monohybrid cross, a testcross of a heterozygous individual resulted in a 1:1 ratio. With the dihybrid cross, you should expect a 1:1:1:1 ratio!

## What is the genotypic ratio of a cross between two recessive traits?

The expected genotype ratio when two heterozygotes are crossed is 1 (homozygous dominant) : 2 (heterozygous) : 1 (homozygous recessive). When a phenotypic ratio of 2 : 1 is observed, there is probably a lethal allele.

## What is the F1 genotype ratio?

The genotype ratio of generation F1 was 100 percent Ss hybrid, which yielded 100 percent smooth peas since that factor is considered dominant. By self-fertilizing those F1 individuals, Mendel was creating the Ss X Ss cross.