1:What types of evidence indicate that cancer arises from genetic changes?2: Discuss how is cancer different from most other types of genetic diseases?3:Outline Knudson’s multistage theory of cancer and describe how it helps to explain unilateral and bilateral cases of retinoblastoma.4:What is haploinsufficiency? How might it affect cancer risk?5:What role […]

In cats, coat color is an X-linked trait where a black coat is determined by the XB allele and a yellow coat by the Xb allele. Black and yellow are co-dominant and a heterozygote has a tortoiseshell coat.a) A yellow female cat is bred to a black tom. Write out […]

There is a long-held journalistic tradition that the press reports the facts of a situation and these facts lead us to the truth. Some argue, however, that in their rush to articulate the truth, the press has let the facts recede too far into the background. The problem has become […]

Early one morning Officer Smith was sitting in her patrol car observing traffic near the town’s elementary school when a sports car suddenly sped past. Realizing that students may be crossing the same street on their way to school, Officer Smith quickly pursued the speeding car. By recalling information about […]