How many sex chromosomes does the normal human female inherit from her mother?
a. 2
b. 22
c. 1
d. 23
e. 46
Ans: c. 1
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___ refers to chronically high blood pressure -
above ___.
a. Hypertension...140/90 b. Hypertension...120/80 c. Atherosclerosis...140/90 d. Atherosclerosis...120/80 e. Hypertension...160/90
Some bacteria avoid being phagocytized by a host's immune system by means of:
a. ameboid motion. b. their capsule or slime layer. c. efficient use of their flagella. d. changing their cell wall structure. e. eliminating the use of a membrane
Amino acids are delivered in their appropriate order by
A) mRNAs. B) RNA-induced silencing complexes (RISC). C) ribozymes. D) rRNAs. E) tRNAs.
Chemical reactions that can proceed toward either anabolism or catabolism are called
A) glycolytic. B) light-independent. C) synthetic. D) cyclic. E) amphibolic.