Question 1
In cultivated stocks, the cross of a variety of white flower plants produced all red flowers in the
F1 generation, but the
F2 generation produced 87 red flowers, 31 cream flowers, and 39 white flowers. Explain these results by giving the genotypes possible for each phenotype.
Question 2
In horses, there are four alleles at the
A locus. Arranged in dominance sequence, they are:
A (wild)
ab (bay)
ac (brown)
ad (black)
If you bred several bay mares whose sires were brown to a brown stallion whose sire was black, what type of offspring would be produced and in what proportion?