Which of the following nucleotide changes leads to a transition mutation?
A) Adenine to guanine
B) Adenine to cytosine
C) Guanine to cytosine
D) Thymine to guanine
E) Guanine to thymine
A
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Derived character states shared by clade members are called
A. ancestral traits. B. homoplasies. C. synapomorphies. D. plesiomorphies. E. symplesiomorphies.
What evidence was used to determine that the
last universal common ancestor of all life lived about 4.3 million years ago?
a. fossils of prokaryotic cells b. genome comparisons between all living things c. life found in meteorites d. fossil cladistic analysis e. more than one of these
Each of the following is a lysosomal storage disease caused by a deficiency in lysosomal enzymes except
A) familial hypercholesterolemia. B) Hurler syndrome. C) Hunter syndrome. D) type II glycogenosis. E) Tay-Sachs disease.
Substances that are recognized by the body as foreign and provoke an immune response are called
A) Antibodies B) Antigens C) Cytokines D) White blood cells