Question

Please help explain number 2 while using then Punnett square

Answer 1

BB/Bb = orange tail

bb = blue tail

Muffy's mom has a blue tail but Muffy has an orange tail. Therefore, Muffy carries a heterozygous genotype Bb.

Muffy's mate has a blue tail like her mom. He carries a homozygous genotype bb.

If Bb is crossed with bb, the offspring will have a 50% chance to have an orange tail or blue tail.

ANSWER: Muffy's offspring has a 50% chance to have a blue tail.