A species that is confined to the limited area in which it evolved is:
a. endemic
b. endangered
c. threatened
d. extinct
e. exotic
a
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What does antidiuretic hormone do?
a. increases glucose reabsorption b. decreases the filtration rate c. increases tubular secretion d. increases water reabsorption e. decreases amino acid reabsorption
Which base-pairing system is correct?
a. A to G; T to C b. A to T; G to C c. A to C; G to T d. A to T or C; G to C or A e. A to T or G; G to C or A
The accompanying figure shows a pedigree and the results of a Southern blot analysis of the ?-globin gene for four family members (II-1, II-2, II-4, and II-5). III-2 was just born and neither her health nor her DNA has been analyzed
The figure also shows a restriction map of ?A and ?S alleles and the location of three DNA probes (A, B, and C). If III-2 is analyzed by Southern blot using the same probe(s) as that used on other members of the family, what is the probability that the result will be only one band? A) 0 B) 1/9 C) 1/6 D) 1/4 E) 2/3
Which of the following nonspecific mediators inhibits virus replication and cellular division while increasing some lymphocyte action?
A. chemokines B. TNF C. IFN D. IL-6 E. IL-1