What does it mean to say that a characteristic of an organism is heritable?
a. The characteristic evolves.
b. The characteristic can be passed on to offspring.
c. The characteristic is advantageous to the organism.
d. The characteristic does not vary in the population.
Ans: b. The characteristic can be passed on to offspring.
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Viral size is generally measured in
A) micrometers. B) picometers. C) nanometers. D) centimeters.
The best method for culturing Chlamydia is
A. a minimal, defined selective medium. B. to incubate the medium at slighty lower than body temperature. C. enrichment through several rounds of blood culture. D. eukaryotic cell culture.
Rosalind Franklin used which technique to determine many of the physical characteristics of DNA?
A) transformation B) X-ray diffraction C) transmission electron microscopy D) density-gradient centrifugation
Transcription in archaea resembles transcription in bacteria in that archaea ________.
A. have operons, have introns, and use a single RNA polymerase to make all types of RNA B. lack operons, contain introns, and use a different RNA polymerase to make mRNA, tRNA, and rRNA C. contain operons, have few, if any, introns, and use a single RNA polymerase for transcription D. lack operons, lack introns, and use a different RNA polymerase to make mRNA, tRNA, and rRNA