In the 1860s Gregor Mendel performed numerous dihybrid crosses between pea plants. Dihybrid crosses involve the study of the inheritance patterns related to two different traits. In guinea pigs the allele for black fur (B) is dominant over the allele for brown fur (b), and the allele for short fur (F) is dominant over the allele for long fur (f). What percentage of the offspring from a BbFf x bbff cross would be expected to be heterozygous for both traits

25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur

Explanation:

Available data:

Parentals)            BbFf      x         bbff

Phenotypes) Black/Short    Brown/Long

Gametes)       BF, Bf, bF, bf      bf, bf, bf, bf

Punnett square)      BF         Bf          bF          bf

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

                      bf    BbFf     Bbff       bbFf       bbff

F1) 4/16 = 1/4 = 25% of the progeny is expected to be dihybrid, BbFf, expressing Black and short fur

    4/16 = 1/4 = 25% of the progeny is expected to be bbFf, expressing Brown and short fur

    4/16 = 1/4 = 25% of the progeny is expected to be Bbff, expressing Black and long fur

    4/16 = 1/4 = 25% of the progeny is expected to be bbff, expressing Brown and Long fur

25%

Explanation:

Because i took the test

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse

very