What is the phenotype ratio of the offspring of the plants in the Punnett square?

Answer 1

The heterozygous plants are purple, therefore purple is the dominant allele.

Assuming it is a single gene with only two possible alleles and the other colour is white; a cross between two heterozygous plants (Pp X Pp) should produce 3 purple and 1 white offspring. This means 3/4 will be purple.

1 offspring will have the genotype PP (purple), 2 will have Pp (purple) and 1 will have pp (white).

Answer 2

The phenotype ratio of the offspring in a Punnett square is typically represented as a ratio showing the different observable traits. For example, in a cross between two plants with one dominant and one recessive trait, the phenotype ratio could be 3:1 (3 plants showing the dominant trait to 1 plant showing the recessive trait).

Answer 3

There's not enough information to answer this completely based on the question.

Are the plants homo or heterozygous?

Which traits are dominent and which are recessive?

Here's the basics:

Call the dominent trait 'A', and the recessive 'a' and using basic Mendelian genetics the parents can be AA, Aa, or aa:

Aa crossed with Aa in a chart looks like this:

A a

__________

A| AA | Aa|

a| Aa | aa|

So, 25% AA, 25% aa, 50% Aa

You can do the same thing with two traits, but the matrix is larger.

Answer 4

A punnett square shows the genotype of the offspring from which a phenotype can be determined if there is an understanding of how the alleles affect the appearance of the offspring.

Least complicated would single alleles from each parent where parent AA is crossed with parent AA.

In this case all offspring have the same phenotype so there is no ratio. Cossing Aa parents results in AA, Aa and aa offspring where based on phenotype AA and Aa are the same and aa is different.

The ratio in this case would be 3:1 for phenotype.

Answer 5

there's 1/2 or 50% chance that the offspring will be a heterozygous purple plant and 1/2 or 50% chance that the offspring will be a white flowered plant. ----

Answer 6

50% percent chance of being a purple flower.

Answer 7

Let's say T=dominant trait and t=recessive trait

T t

T TT Tt

t Tt tt

So, 1 TT, 2 Tt, and 1 tt

Answer 8

You will get 2 PP and 2 Pp. You only see purple flowers (phenotype).

Answer 9

3:1 ratio

2 Rr, 1 RR, 1 rr

Answer 10

2 long, 2 short