Question

n a certain species of rabbits, black coat color is dominant over brown coat color. The probability of producing a rabbit with brown coat color from two rabbits that are both heterozygous with black coat color is

Answer 1

If black is dominant (B) and brown recessive (b), two heterozygotes are Bb × Bb. The Punnett square gives BB, Bb, Bb, bb — so probability of brown (bb) = 1/4 (25%).