In giraffes, a dominant allele n results in a white stripe around the neck. at a separate locus the dominant allele s causes the tail of a giraffe to be short. a white striped, short tail giraffe was crossed to an unstriped, normal. tail giraffe and in the progeny there were:
a. 25% striped, short tail
b. 25% striped, normal tail
c. 25% unstriped, short tail
d. 25% unstriped, normal tail

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?

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?