Biology Forums - Study Force

In cats the allele B produces black, whereas b
  produces yellow. Neither gene is dominant, and in
  the heterozygous state the phenotype is a
  combination of yellow and black spots called
  tortoiseshell. The alleles B and b are X-linked. If a
  tortoiseshell cat has three tortoiseshell kittens and
  two black kittens, give the genotype and phenotype
  of the tomcat that produced them, and give the sex of
  the kittens. What will be an ideal response?
 
 

Question 2

Males that tend to be taller than average and show
  mild mental impairment may be designated
  a. XXY.
  b. XYY.
  c. Turner syndrome.
  d. Down syndrome.
  e. none of these.

Answer to q. 1

Answer: BY black, tortoiseshell female, black males

Answer to q. 2

Answer: b

Makes more sense now, TY