If mRNA is not modified what will result?
a. The mRNA will not be able to leave the nucleus
b. The cell will self destruct.
c. Mutation.
d. The new protein will become activated earlier.
e. The DNA code will become altered.
a
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Improperly functioning acyl carrier proteins (ACPs) would likely result in
A) a physiological shift to anaerobic metabolism where an energized membrane is less important for energy production. B) enhanced growth of a bacterium due to faster growth substrate uptake by a weakened membrane. C) no harm to bacteria, because only archaeons and eukaryotes use ACPs for fatty acid biosynthesis. D) death for a bacterium due to poor lipid bilayer integrity.
Which is correct about DNA replication?
A. DNA polymerase can build DNA from scratch. B. DNA is made conservatively. C. The place where the parent DNA becomes unzipped during DNA replication is called the replication fork. D. DNA polymerase adds nucleotides in the 3' to 5' direction. E. The strand made continuously is the lagging strand.
Hfr cells can integrate the F factor and some genes into the bacterial chromosome. How do Hfr cells accomplish this?
a. through crossing-over b. through mitosis c. through meiosis d. through prophase
The kidneys are important homeostatic organs, contributing to maintenance of all of the following except
A. blood pressure. B. blood volume. C. blood pH. D. destruction of worn-out red blood cells. E. ion concentration of extracellular fluids.