Question

Complete this Punnett square.

Enter your answer in the space provided.









T










Tt






t



Tt tt


In this Punnett square, what is the ratio of homozygous to heterozygous offspring?



In the Punnett square, what percentage of the offspring are homozygous recessive?

Answer 1

T t

t Tt tt

t tt tt

100% Heterozygous

Answer 2

a) Ratio of homozygous to heterozygous offspring 1:1

b) Percentage of the offspring that are homozygous recessive 50%

Step-by-step explanation:

When parents with genotype "Tt" and "tt" are crossed , the following offsprings are produced -

T t

t Tt tt

t Tt tt

The hetrozygous offsprings produced in this cross is Tt

The homozygous offsprings produced in this cross is tt

So, the total number of hetrozygous offsprings = 2

The total number of homozygous offsprings = 2

a)

Ratio of homozygous to heterozygous offspring

`(2)/(2)  = (1)/(1) \\`

b)

Percentage of the offspring that are homozygous recessive

`(2)/(4)*100\\= 50`%