Some people have freckles and some people do not have freckles if a child has freckles at least one parent has freckles however the child may have a sibling that does not have freckles which statement best describes the presence of freckles. a : freckles are not determined by dna b: there are 2 alleles for freckles c: there is no dominant allele for freckles d: freckles are determined by 2 genes instead of by 1

a client has been prescribed misoprostol for the treatment of peptic ulcer disease. what is a true contraindication for this medication

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

Which best describes how the common cold spreads in the human body? a bacteria burst out of normal cells killing them b viruses replicate inside respiratory cells c bacteria inject dna into normal cells d viruses insert dna into bacteria