Clonal selection is the idea that:
A. sequence information from the antigen is
copied into the DNA of a B cell.
B. genomic rearrangement responds to the
presence of antigen to produce the correct
antibody.
C. the ability of an antibody to bind antigen
results in mitotic cell division.
D. Two answer options are correct: genomic
rearrangement responds to the presence of
antigen to produce the correct antibody AND
the ability of an antibody to bind antigen
results in mitotic cell division.
C
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Tendons function:
A. to attach muscle to bone. B. to attach two separate bones. C. as the site of bone growth. D. as an organic component of bone.
Which of the following is a characteristic of active transport?
A. Use of ATP or a proton gradient as a source of metabolic energy B. Saturable uptake rate C. Can move materials against a concentration gradient D. All of the choices are correct.
Phylogenetic systematics produces branching diagrams called:a
phylogenic trees. b. cladistic trees. c. phenograms. d. molecular clocks. e. cladograms.
If two gene loci are on nonhomologous chromosomes, genes at these loci are expected to assort independently
Indicate whether the statement is true or false