Provide two lines of evidence that support the idea that DNA is the genetic material. What will be an ideal response?
Concepts to Consider: The experiments of Avery et al., which showed that DNA was
responsible for transformation of avirulent strains of pneumococcus to virulent strains, and
the experiments of Hershey and Chase, which demonstrated that DNA was responsible for
the production of bacteriophages within infected bacteria, are excellent examples showing
DNA to be the hereditary material.
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The causative agent of streptococcal pharyngitis, also known as "strep throat," is
A) Streptococcus pyogenes. B) Streptococcus pneumoniae. C) Streptococcus mutans. D) Streptococcus lactis.
What is the expected phenotypic ratio of a cross between two orange-eyed MendAliens?
A) 3 black-eyed:1 orange-eyed B) 0 black-eyed:1 orange-eyed C) 1 black-eyed:3 orange-eyed D) 1 black-eyed:0 orange-eyed E) 1 black-eyed:1 orange-eyed
Ingesting lactic acid bacteria to prevent colonization by intestinal pathogens such as Salmonella enterica during antibiotic therapy is an example of ________.
A) chemotherapy B) vaccination C) probiotics D) parasitism E) opportunism
Which tissue type is most suited to areas of the body in which the cells need continuous replacement to repair damage from daily wear and tear?
A) Muscle B) Epithelial C) Connective D) Nerve