In guinea pigs, short hair (S) is dominant over long hair (s); and black fur (B) is dominant to white fur (b). Cross two heterozygous individuals.
a) 1/4 SSBB, 1/4 ssbb, 1/4 SsBb, 1/4 Ssbb
b) 1/4 SsBB, 1/4 Ssbb, 1/4 ssBB, 1/4 ssbb
c) 1/4 SsBB, 1/4 SsBb, 1/4 ssBB, 1/4 ssBb
d) 1/4 SSBB, 1/4 SsBB, 1/4 ssBB, 1/4 ssbb
