The answer is 45 degrease
All the numbers added up then divided by the amount of numbers.
EX: 5 + 10 + 3 + 8 + 9
35
35/5
7
A pair of lowercase letters represents a recessive gene.
For further clarification, if needed... If the punnett square was for dark hair being dominant over blonde hair, the offspring that was represented by two lowercase letters in a punnett square would have a phenotype of blonde hair.
22+24+26+28+30+32+34+36+38+40+42+44= 396