please answer question 30
Dear student,
Answer is a) pre-existing mutation
Due to industrial revolution the black peppered moth could easily hide in the trunk of the tree due to which black peppered moth is not visible to the predator. Therefore the frequency of black peppered moth increased. This is due to the rare mutation in the pre-existing gene which is selected for and over a period of time adjust to new equilibrium.
Regards
Answer is a) pre-existing mutation
Due to industrial revolution the black peppered moth could easily hide in the trunk of the tree due to which black peppered moth is not visible to the predator. Therefore the frequency of black peppered moth increased. This is due to the rare mutation in the pre-existing gene which is selected for and over a period of time adjust to new equilibrium.
Regards