In a certain breed of dog, the dominant, b, is required for black fur; it's recessive, b, produces brown fur.
however, the dominant, i, is epistatic to the color locus and can inhibit pigment formation to produce white fur. the recessive allele, i, on the other hand, permits pigment deposition in the fur.

what would be the phenotypes of the following sets of parents and what would be the results of the mating?

a. bbii x bbli

b. bbli x bbii

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Coat color in cats is determined by genes at several different loci. at one locus on the x chromosome, one allele (x ) encodes black fur and another allele (xo) encodes orange fur. females can be black (x x ), orange (xoxo), or a mixture of orange and black called tortoiseshell (x xo). males are either black (x y) or orange (xoy). bill has a female tortoiseshell cat named patches. one night, patches escapes from bill\'s house, spends the night out, and mates with a stray male. patches later gives birth to the following kittens: one orange male, one black male, two tortoiseshell females, and one orange female. what are the genotypes of patches, the stray male, and the kittens?

Diagram of the evolution of land plants?