The disease named cystic fibrosis is an autosomal recessive disorder. If the father has a genotype of Cc, a carrier person, and the mother also has a genotype of Cc, another carrier. What is the percent chance that the child will have the disease with a genotype of cc; what is the percent chance that the child will be a carrier like each of the parents, Cc ? A. 25%; 50%
B. 75%; 25%
C. 50%; 25%
D. 100%; 0%
E. 0%; 50%

Some heterozygous alleles create variations in expression so that there is not a clear dominant or recessive allele. question 1 options: true false

Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a. precipitation b. erosion c. migration d. condensation