One gene is able to encode information for different forms of a protein via ____
a. alternative splicing
b. primary splicing
c. secondary splicing
d. mRNA mutations
e. tRNA mutations
a
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The research team used their experiments to study the incorporation of labeled nucleotides into a culture of lymphocytes and found that the lymphocytes incorporated the labeled nucleotide at a significantly higher level after a pathogen was introduced
into the culture. They concluded that _____. A) the presence of the pathogen made the experiments too contaminated to trust the results B) their tissue culture methods needed to be relearned C) infection causes lymphocytes to divide more rapidly D) infection causes cell cultures in general to reproduce more rapidly E) infection causes lymphocyte cultures to skip some parts of the cell cycle
Which of the following damaged templates encountered by a replication fork is repaired by double-strand break repair?
A. The replication fork encounters a lesion and translesion synthesis occurs. B. The replication fork encounters a lesion and stalls. C. The replication fork encounters a lesion and bypasses it, restarting synthesis on the other side of the lesion. D. The replication fork encounters a lesion at which repair has been initiated and the fork collapses. E. The replication fork encounters heteroduplex DNA.
What is the most common reason that some people oppose environmental protection? a. They fear the economic consequences
b. They do not care about the environment. c. They want to profit from biological wealth. d. They are more interested in cultural wealth.
The charge on amino acids in the active site of an enzyme would be affected by
A. substrate concentration. B. temperature. C. pH. D. antibiotics.