A person who is a heterozygote for G6PD deficiency is protected against
A) malaria.
B) diphtheria.
C) tuberculosis.
D) sickle cell disease.
A) malaria.
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The correct order for the stages of a phage infection is
A. penetration, transcription, attachment, replication of nucleic acid and protein, assembly, release. B. attachment, penetration, transcription, replication of nucleic acid and protein, assembly, release. C. attachment, replication of nucleic acid and protein, penetration, transcription, assembly, release. D. transcription, attachment replication of nucleic acid and protein, assembly, penetration, release.
Aposematic coloring occurs when ____
a. coloration serves as a disguise b. a harmless species resembles a repellant one c. two or more repellant species resemble one another d. an individual can increase its size when threatened e. repellant species exhibit bright, contrasting patterns
In which of the following properties are the Archaea more like eukaryotes than the bacteria?
A) size B) microtubules and microfilaments C) translation initiation D) mode of cell division E) both choices C and D
Assume that you have cut ? DNA with the restriction enzyme HindIII. You separate the fragments on an agarose gel and stain the DNA with ethidium bromide
You notice that the intensity of the stain is less in the bands that have migrated closer to the "+" pole. Give an explanation for this finding.