PCR can be used to identify an unknown bacterium because
A) the RNA primer is specific.
B) DNA polymerase will replicate DNA.
C) DNA can be electrophoresed.
D) all cells have DNA.
E) all cells have RNA.
A
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The ________ microscope is capable of atomic resolution of specimens, even when they are immersed in water.
Fill in the blank(s) with the appropriate word(s).
Four of the five answers listed below are
conditions caused by chromosomal nondisjunction. Select the EXCEPTION.
a. Down syndrome b. Huntington's disease c. Turner syndrome d. Klinefelter's syndrome e. trisomy 18
Cladistics is based upon evolutionary relationships which generate ___________ structures.
Fill in the blank(s) with the appropriate word(s).
Which level of protein structure do the ?-helix and the ?-pleated sheet represent?
A) primary B) secondary C) tertiary D) quaternary