Which type of mutation will have an extra base inserted into the gene?
a. Deletion
b. Insertion
c. Base-pair substitution
d. Translocation
e. Elimination
b
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Members of the phylum Thermotogae can be found growing in
A. the intestinal tract of mammals. B. soils of the Antarctic. C. marine salterns of the shore of the Dead Sea. D. marine hydrothermal vents and terrestrial solfataric hot springs.
Which of the following is not a regulatory mechanism used to control the lactose operon in Escherichia coli?
A. Induction B. Attenuation C. Catabolite repression D. All of the choices are correct.
The same DNA probe used to measure mRNA levels by northern blotting can also be used on a Southern blot with a restriction digest of genomic DNA
What new information can be gained from Southern blotting (that wasn't already obtained by the northern blot analysis)? A) the level of protein that is being translated from the mRNA transcript B) the presence of a unique restriction fragment pattern indicating a mutation in a known restriction site C) the size of the genomic DNA fragments, including both introns and exons D) the size of the genomic DNA fragments and the level of protein being translated E) the size of the genomic DNA fragments and the presence of a unique restriction fragment pattern indicating a mutation in a known restriction site (both B and C)
Use the Hardy-Weinberg equations: p + q = 1 and p2 + 2pq + q2 = 1. If the dominant allele frequency is 0.8, then what percent of the population will be heterozyous?
A. 0.32 B. 0.16 C. 0.64 D. 0.04 E. 0.40