In a species of mouse, the allele for dark fur ( $D$ ) is dominant to the allele for pale fur ( $d$ ).

Two dark-furred mice, both with the genotype $D d$ , are crossed. The expected ratio of dark-furred offspring to pale-furred offspring is $3 : 1$ .

The mice produce a total of 36 offspring.

Calculate the expected number of pale-furred offspring.

Explain why pale-furred offspring can be produced by these two dark-furred parents.

In a species of mouse, the allele for dark fur ( $D$ ) is dominant to the allele for pale fur ( $d$ ).

Two dark-furred mice, both with the genotype $D d$ , are crossed. The expected ratio of dark-furred offspring to pale-furred offspring is $3 : 1$ .

The mice produce a total of 36 offspring.

Calculate the expected number of pale-furred offspring.

Explain why pale-furred offspring can be produced by these two dark-furred parents.

5.1 Inheritance

5.1 Inheritance Questions