The mechanism for reactive oxygen species to cause mutation is
A. bases are oxidized to a variety of different products which might pair with a different base than the original base would have
B. thymine bases are dimerized which causes a break in the DNA which is not repaired correctly.
C. the reactive oxygen species stabilize different tautomeric forms of the bases causing inappropriate pairing.
D. guanine is depurinated by the reactive oxygen species and if it is not repaired can result in any base being inserted.
A
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A cell in G0 state ____
a. is actively growing before cell division begins b. has a cleavage furrow and the cytoplasm is beginning to divide c. is actively replicating chromosomes d. is in cytokinesis e. has entered a resting stage and is not actively dividing
What makes fungi important decomposers?
What will be an ideal response?
A water-soluble hormone (signaling molecule)
would most likely bind to which of the following membrane proteins?
a. active transporter b. recognition c. receptor d. passive transporter e. regulator