Answer:
The answer to your question is
a) BB and bb
b) 100% black
Step-by-step explanation:
From the information given, we know that black rabbits are dominants and white rabbits are recessives.
a) We know that all the offspring is heterozygous so, the parents must be homozygous.
BB x bb
Punnett Square
b b
B Bb Bb ⇒ Offspring
B Bb Bb
Genotype of the parents= BB and bb
b) Phenotypes percents for the offspring = 100 % black