________ of cytosine bases in mammals causes decreased accessibility of DNA to the transcriptional machinery, resulting in transcriptional repression
Fill in the blank with correct word.
Answer: Methylation
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Which of the following would contribute to a negative feedback loop that would reduce atmospheric CO2?
A) increased terrestrial NPP B) decreased terrestrial NPP C) increased CO2 emissions D) decreased oceanic NPP
Transformation in a cloning experiment is ________
A) ligating pieces of foreign DNA together B) inserting DNA into bacteria cells C) cutting DNA with restriction enzymes D) using PCR to clone a gene E) a technique for determining gene copy number in a genome
NADPH is made by
A. the Krebs cycle. B. glycolysis. C. the Calvin cycle. D. the passing of electrons from photosystem I to an electron transport chain. E. chemiosmosis.
T or F: The fiber force in a pennate muscle is in the same direction as the tendon
What will be an ideal response?