Question

In a dihybrid cross between individuals that are heterozygous for each trait, the four possible offspring phenotypes will be observed in the ratio of ____________

Answer 1

3 : 1

Step-by-step explanation

Heterozygous trait is when for a particular gene or genes there are two different alleles.

Dihybrid cross between individuals that are heterozygous for each trait

Cross A x B

Genotype Hh x Hh

Punnett square

H h

H HH Hh

h Hh hh

Four possible phenotype : HH Hh Hh hh

Since 'H' is dominant allele and 'h' is recessive allele so dominant allele will express itself in both heterozygous and homozygous form.

3 : 1