17. In bears, (F) is the dominant allele for brown fur and (f) is the recessive allele for white fur. If a heterozygous male bear is crossed with homozygous recessive female, What would be the probability of the following combinations of offspring?
a. A litter of six cubs all with white fur? (1 mark)
b. A litter of five cubs, two with brown fur and three with white fur. (1 mark)
c. A litter of seven cubs, and the first six cubs, one with white fur and five with brown fur, and the last-born cub with white fur. (4 marks)
d. A first litter of eight cubs, five with brown fur and three with white fur, and then a second litter of six cubs, four with brown fur and two with white fur. (6 marks)
e. A first litter of five cubs, four with brown fur and one with white fur, and then a second litter of seven cubs in which the first-born is homozygous, the second born is brown, and the remaining five cubs are four brown and one white.
(7 marks)
a. 1/64
b. 3/32
c. 1/128
d. 1/128
e. 1/128