In the context of molecular genetics, how does one reconcile the terms overlapping genes and nonoverlapping code?
What will be an ideal response?
The genetic code contains codons that are nonoverlapping; however, overlapping genes are observed in some viruses in which, due to differential use of AUG to initiate translation, the same mRNA can yield different protein products.
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If you were to travel to a region where rice is grown in paddies, you would see lots of the water fern Azolla growing in the water. A farmer would tell you this is done because Azolla is considered a “natural fertilizer. Explain why this is the case.
What will be an ideal response?
NADP+ is the coenzyme of choice in ________ reactions, while NAD+ is the coenzyme of choice in ________ reactions.
A) anabolic; catabolic B) catabolic; anabolic C) metabolic; anabolic D) anabolic; both catabolic and anabolic E) both catabolic and anabolic; catabolic
Consider two IgG molecules, each of which reacts with a different epitope. Which of the following
statement(s) is(are) TRUE?
a. They will have the same amino acid sequence in their constant regions. b. They will have different amino acid sequences in their variable regions. c. They can bind the same antigen. d. They can bind different antigens. e. They can bind the same antibody.
The by-product of the metabolism of
cyanobacteria that had the most effect on the further evolution of life is a. oxygen gas. b. carbon dioxide. c. water. d. nitrogen gas. e. hydrogen gas.