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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Our sense of "fullness" after a big meal is due to
A. chemoreceptors. B. electromagnetic receptors. C. stretch receptors. D. thermoreceptors.
Microbes cycle N uniquely in other ways
What will be an ideal response?
In marine environments,
A) both species richness and productivity increase with latitude. B) species richness increases and productivity decreases with latitude. C) species richness decreases and productivity increases with latitude. D) both species richness and productivity decrease with latitude.
In the study of microbial communities, a new technique using microelectrodes is helping us to infer data about microbial activity. Microelectrodes are capable of measuring which of the following data? (Check all that apply.)
A. Measuring oxygen and nitrogen tension B. Measuring electron donors and receptors C. Measuring DNA amounts in the sample D. Measuring pH