First, give the amino acid sequence for the following DNA segment: AATCGAGGTACA. If a base substitution mutation occurred in this segment of DNA, would the resultant amino acid chain be affected?
What will be an ideal response?
Initially, the amino acid sequence would be phe-ala-pro-cys. Depending on what nucleotide base the student chooses, the amino acid sequence may or may not be affected.
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In the logistic growth curve depicted in Figure 46.5, as time goes on, what value would you expect N to approach?
A. r B. K C. S D. t E. N
A drug designed to inhibit the response of cells to testosterone would almost certainly result in which of the following?
A) lower cytoplasmic levels of cAMP B) an increase in receptor tyrosine kinase activity C) a decrease in transcriptional activity of certain genes D) an increase in cytosolic calcium concentration E) a decrease in G protein activity
What is the role of antitermination in lambda phage gene expression?
What will be an ideal response?
Which inclusion body/bodies is/are hypothesized to direct some bacteria down toward sediments?
a. elemental sulfur granules b. polyphosphate granules c. poly-?-hydroxybutyrate (PHB) d. magnetosomes