Which antigens are most important in matching for tissue transplants?
A) HLA A and B
B) blood group antigens A or B
C) HLA DR1 and DQ1
D) all of the above
Ans: D) all of the above
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When DNA fragments are sealed together by DNA ligase, the process is referred to as ____
a. transformation b. gene remodeling c. the polymerase chain reaction d. restriction cloning e. ligation
Which part of the spleen contains masses of lymphocytes?
a. nodes b. marrow c. red pulp d. white pulp e. clear pulp
The coefficient of inbreeding (F) can be used to estimate the proportion of loci that are __________
A) fixed in a population B) homozygous identical by descent C) heterozygous by descent D) lethal alleles E) recessive
Schistosomiasis is a debilitating disease that affects some 200 million people. It is caused by a parasitic flatworm that is transmitted to humans through contact with an air-breathing mollusc. The parasite and mollusc, respectively, are _____
Fill in the blank(s) with the appropriate word(s).