You Identify a Novel Deep-Sea Vent (DSV) Bacteria and Wish

question 6

Essay

You identify a novel deep-sea vent (DSV) bacteria and wish to explore its molecular biology. You find that you can introduce DNA sequences into the bacteria and it will transcribe and translate those sequences. However, you notice some curious differences between the expected proteins and the actual proteins produced.
a. A 9-bp DNA sequence that in E. coli encodes a short peptide of Met-Trp-Phe instead produces a peptide of Met-Cys-Val-Trp-Gly-Val-Phe in the DSV bacteria. What is the sequence of the coding strand of the short DNA fragment? Propose an explanation for the longer peptide produced by the DSV bacteria.
b. Curiously, a 9-bp sequence that in E. coli produces a peptide of Met-Thr-Asn does not produce any peptide in the DSV bacteria. What is the sequence of the coding strand of this DNA fragment? Propose an explanation for the absence of any peptide.

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Definitions:

Recessions

Periods of temporary economic decline during which trade and industrial activity are reduced, generally identified by a fall in GDP in successive quarters.

Income Elasticity

A measure of how much the demand for a product or service changes in response to changes in consumer income.

Inferior Good

A type of good for which demand decreases as the income of individuals increases, opposite to normal goods.

Normal Good

A good for which demand increases when income increases, and falls when income decreases but price remains constant, showing a direct relationship between income and demand.