How many HLA haplotypes does each human have?

A. 1 D. 4
B. 2 E. 5
C. 3


B

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

The organelle that is the equivalent of a cellular garbage disposal system is the

A) nucleus. B) lysosome. C) mitochondrion. D) glucosome.

Biology & Microbiology

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

Biology & Microbiology