If the DNA from a crime scene matches a suspect’s DNA at four different loci, what should be
concluded if the DNA does not match the suspect’s DNA at a fifth locus?
What will be an ideal response?
This means that the DNA at the crime scene did not come from the suspect. If it did, all five loci would
match.
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If the immune system responds inadequately to antigenic stimulation, this is termed
A. hypersensitivity. B. autoimmunity. C. cell-mediated immunity. D. immunodeficiency.
The ultimate fate of the energy used by organisms is ____
a. conversion into heat b. transmission onto offspring c. to be recycled repeatedly without loss d. to be recycled as metabolic energy e. move into the environment by conduction
Fucus, a conspicuous intertidal alga, belongs to the phylum:
1.Chlorophyta 2.Rhodophyta 3.Phaeophyta 4.Anthophyta
A blue-eyed, left-handed woman marries a brown-eyed, right-handed man who is heterozygous for both of his traits. If blue eyes and left-handedness are recessive, how many different phenotypes are possible in their children?
a. four b. one c. three d. five e. two