The polymerase chain reaction
A. can provide sufficient DNA for analysis from a small sample of biological material at the
scene of a crime.
B. uses a restriction enzyme.
C. requires a heat-resistant polymerase.
D. can provide sufficient DNA for analysis from a small sample of biological material at the
scene of a crime and requires a heat-resistant polymerase.
E. uses a restriction enzyme and can provide sufficient DNA for analysis from a small
sample of biological material at the scene of a crime.
D
You might also like to view...
Which of the following is a function of reverse transcriptase?
A. It functions as a ribonuclease to degrade the viral RNA once it has been copied into DNA. B. It functions as a DNA-dependent DNA polymerase. C. It functions as a RNA-dependent DNA polymerase. D. All of these are functions of reverse transcriptase.
Which biome occurs where winter drought reduces photosynthesis and most trees drop their leaves?
a. tropical montane forests b. tropical deciduous forests c. boreal forests d. dry savannas e. temperate forests
__________ selection leads to forms of traits that enhance reproductive success and may result in sexual dimorphism.
Fill in the blank(s) with the appropriate word(s).
Why must T cell activation take place outside the thymus?
A. An activated T cell could destroy the other maturing T cells. B. Many T cells are self-reactive and must be eliminated in the thymus before any possibility of activation. C. An activated T cell could then destroy the thymus gland itself. D. Other cell types might be accidentally activated in the thymus.