The classic Hershey and Chase (1952 ) experiment that offered evidence in support of DNA being the genetic material in bacteriophages made use of which of the following labeled component(s)?

A) oxygen and phosphorus
B) nitrogen and oxygen
C) phosphorus and sulfur
D) tritium
E) hydrogen


Answer: C

Biology & Microbiology

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Which process is not a method of asexual reproduction?

a. production of new plants at nodes along stolons in strawberries b. humans growing trees from cuttings c. production of new plants at nodes along underground rhizomes in Bermuda grass d. buds from an underground stem of an onion e. self-fertilization

Biology & Microbiology

A pictogram is used to

A) compare which DNA base is present at a particular position in a conserved short DNA sequence among different species. B) compare the frequency of two-base sequences in the genomes of species thought to be closely related based on other types of evidence. C) visualize what the chromosomes of different species look like when condensed. D) align long sections of the genomes of different species that are the same in sequence.

Biology & Microbiology

Puffballs and bracket fungi are most closely related to:

a. yeast. b. molds. c. truffles. d. black bread mold. e. common edible mushrooms

Biology & Microbiology

After a week of asymptomatic infection with Bordetella pertussis, the patient has cold-like (catarrhal) symptoms for a week or two followed by a period of severe paroxysmal episodes of coughing that leave the patient anoxic and fatigued

Indicate whether the statement is true or false

Biology & Microbiology