Biology I Mid-Year-Assessment (2020-2021)
In hamsters, black fur (B) and white fur (W) are co-dominant. A scientist finds a record of offspring for a mated pair of
hamsters. The record shows 50% of the offspring had black and white fur and 50% of the offspring had white fur. None of
the offspring had black fur only. Which parental cross was most likely responsible for the percentages of offspring fur color
the scientist found?
A. BW x WW
B. BW x BW
C. BB x WW
D. BW x BB