F1 generation will be phenotype of both dominant alleles (black dominant B and short hair S) but will be carriers and have genotypes of both recessive alleles (chestnut b and long hair s).
The F2 generation will show recessive phenotype traits when crossed with another rabbit that also possesses recessive alleles.
DNA synthesis occurs during the S phase, between the G1 and G2 phases of interphase. DNA replication is therefore complete before the mitotic phase begins.