Specificity refers to ____
a. the ability of MHC markers to identify foreign cells
b. the ability of macrophages to destroy bacteria
c. the ability of the complement system to form membrane attack complexes
d. the formation of specific receptors on T and B cells
e. the formation of specific memory cells after an infection
ANSWER: d
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In the Lederberg and Tatum experiment what is the purpose of performing the experiment with the strains without adding them together?
A. It serves as a control to calculate the rate of reversion mutations B. There is no experimental purpose to performing that part of the experiment C. It tests that the strains were made correctly D. It tests to make sure the media was made correctly
DNA replication occurs ____
a. during interphase before meiosis b. during prophase I of meiosis c. during prophase II of meiosis d. between meiosis I and meiosis II e. during interkinesis
List the three major groups of pinnipeds and outline the anatomical differences between them
What will be an ideal response?
Shared derived traits are found in all members of the ingroup of a clade.
a. true b. false