The primary factors driving the dynamics of population abundance are the demographic processes of ________ and ________
Fill in the blank(s) with correct word
birth; death
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Which of the following does not increase the level of nutrients available to crop plants?
A. adding humus to the soil B. crop rotation C. plowing crop residues under D. applying herbicides E. applying chemical fertilizers
A bacterial mismatch repair system is able to correct replication errors that insert an incorrect nucleotide. How is this repair system able to determine which mismatched base is incorrect?
A) The incorrect base results in a bulge on only the new strand. B) The incorrect base is in the parental strand which is modified with methyl groups. C) Some bases of the parental strand are methylated, while none of the new strand are. D) A methyl group is attached to the incorrect base in the newly synthesized DNA strand. E) DNA polymerase is bound to the new strand at the location of the incorrect base.
Certain metabolic pathways are affected by the buildup of a product which interacts with an enzyme catalyzing one of the initial steps of the pathway; this can be an example of
(A) transcriptional regulation (B) thermodynamic regulation (C) translational regulation (D) feedback inhibition (E) posttranslational modification
When glucose is used as the energy source, the largest amount of ATP is produced in ____
a. glycolysis b. acetyl-CoA formation c. the Krebs cycle d. fermentation e. electron transfer phosphorylation