How many HLA haplotypes does each human have?
A. 1 D. 4
B. 2 E. 5
C. 3
B
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Archaea are resistant to damage by harsh conditions because their membrane lipids, unlike those of Bacteria and Eukaryota, have:
A. ether linkages B. proton pumps C. sulfhydryl linkages D. transferases E. cytoskeletons
The organelle that is the equivalent of a cellular garbage disposal system is the
A) nucleus. B) lysosome. C) mitochondrion. D) glucosome.
Random movement from a region with higher concentration to a region with lower concentration in the cell is called ________
Fill in the blank(s) with correct word
Knowledge of the cell cycle has led to improved means of treating cancer. The drug 5-fluorouracil blocks the synthesis of thymine. This drugs inhibits the cell cycle at the end of
a. G1. b. G2. c. S. d. prophase. e. metaphase.