In cats, the allele B produces black, while 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?
BY black, tortoiseshell female, black males
You might also like to view...
A catalase-negative, non–spore forming, nonbranching, gram-positive rod that produces hydrogen sulfide when inoculated into triple sugar iron (TSI) agar is most likely:
a. Corynebacterium. b. Bacillus. c. Actinomyces. d. Erysipelothrix.
Directional selection favors
a. intermediate phenotypes. b. phenotypes at one end of the distribution. c. phenotypic extremes at both ends. d. heterozygotes. e. homozygotes.
Earth's largest carbon reservoir is ____
a. the atmosphere c. seawater b. sediments and rocks d. living organisms
All of the following are common to both the Gram stain and the acid-fast stain EXCEPT
A) primary stain. B) counterstain. C) a decolorizing agent. D) a chemical mordant. E) a decolorizing agent and a counterstain.