What happens first in DNA replication?
a. the DNA molecule unwinds
b. DNA polymerase brings new nucleotides to
the old DNA strand
c. DNA ligase activity begins
d. hydrogen bonds are broken
e. none of these things happen first
a. the DNA molecule unwinds
b. DNA polymerase brings new nucleotides to
the old DNA strand
c. DNA ligase activity begins
d. hydrogen bonds are broken
e. none of these things happen first
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A recovering stroke patient complained about strange smells in his room, but no cause could be found. The doctor diagnosed this as phantosmia, or olfactory hallucination, and said it was likely due to stroke-related damage to which tissue?
A. Peripheral nervous system B. Olfactory receptors C. Nodes of Ranvier D. Central nervous system
There are two different alleles for the number of fingers on the hands: five-finger allele and six-finger allele. When both the five-finger allele and the six-finger allele are present in the same individual, the individual has six fingers on each hand. Which allele is dominant?
A. 6 fingers B. 7 fingers C. 1 finger D. 5 fingers E. 11 fingers
The outcome of the process illustrated in Figure 26-2 is:
a. four new genetically identical cells that differ genetically from what they were before. b. four new but genetically distinct cells. c. two new genetically identical cells that differ genetically from what they were before. d. two new but genetically distinct cells. e. one male and one female cell.
________ is a condition caused by Graves' disease (too much thyroid), in which the eyes protrude
Fill in the blank(s) with correct word