A new nucleotide can only be added to the ____ of a growing DNA strand. DNA therefore always grows in the _____ direction
A. 3'; 5' to 3'
B. 5'; 5' to 3'
C. 3'; 3' to 5'
D. 5'; 3' to 5'
A
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Which of the following happens first in the PCR process?
a. repeated cycles of high and low temperatures b. mixing of DNA polymerase with template DNA, nucleotides, and primers c. DNA hybridization d. DNA synthesis e. DNA unwinds
In the Beadle and Tatum study, it was important that Neurospora was haploid because:a
it is easier to grow haploid molds in the laboratory. b. haploid molds have simpler nutritional requirements than do diploid molds. c. a mutation that arises is not masked by a normal allele on a homologous chromosome. d. haploid Neurospora will always mutate. e. diploid Neurospora will always mutate.
Harmful substances are detoxified within the cell by the ________
Fill in the blank(s) with correct word
In cells infected with the polio virus, there is an inhibition of protein trafficking between two organelles. Vesicles are kept from forming and therefore proteins cannot be moved. Based on your knowledge of organelle function, what two organelles are involved here?
What will be an ideal response?