Following treatment with restriction enzymes, what procedure would be used to separate DNA fragments of different lengths?
A. transformation
B. amplification
C. microarray analysis
D. polymerase chain reaction
E. gel electrophoresis
Answer: E
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At what level of organization does life begin?
a. digestive system b. cell c. molecule (water) d. molecule (DNA) e. population
Ionic bonds are important in biological structures. Which of the following pairs of molecules would form an ionic bond?
A) two water molecules B) two amino acids with oppositely charged functional groups C) two different stereoisomers of the same sugar D) two phospholipids E) a water molecule and a lipid
The human chromosomes that do not determine gender are
A. not found in pairs. B. the "X" and "Y" chromosomes. C. autosomes. D. called sex chromosomes. E. None of the answers are correct.
If a cell contains only one member of each pair of homologues, it referred to as ________
Fill in the blank(s) with correct word