The map distances for four linked genes are as follows: A is 22 cM from B, B is 7 cM from C, C is 9 cM from D, B is
2 cM from D, A is 20 cM from D, and A is 29 cM from C. Based on these data, what is the order of these four genes on
the chromosome?
a. ABCD
b. ADBC
c. ABDC
d. BADC
e. CADB
ANSWER: b
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Automated nucleotide sequencing machines detect DNA bands by laser induced ________.
Fill in the blank(s) with the appropriate word(s).
Phospholipids are made up of:
A. five-carbon rings with two nonpolar tails. B. a glycerol and three fatty acids. C. four fused carbon rings. D. a phosphate, two fatty acids and a glycerol.
Which process involves the transfer of heat from the surface of a body to a fluid that passes over the body's surface?
a. convection b. evaporation c. radiation d. conduction
The process of acquiring antibiotic resistance by means of bacteriophage activity is called
a. transduction. b. R-plasmid acquisition. c. point mutation. d. transformation.