Which of these statements can be logically inferred from the amount of DNA shared by chimpanzees and humans?

A) Humans and chimpanzees share a relatively recent common ancestor.
B) Humans evolved from chimpanzees.
C) Humans are unique and different from all other life forms.
D) Humans are a more complex life form than chimpanzees.


A

Biology & Microbiology

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Which of the following methods of DNA amplification does NOT require cloning?

a. reverse transcription b. polymerase chain reaction c. cloned DNA d. reverse transcription and polymerase chain reaction e. polymerase chain reaction and cloned DNA

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Plant roots increase the soil's capacity to hold water, so vegetation contributes to erosion and flood control

Indicate whether the statement is true or false

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Conjugate vaccines which link the target antigen to a more immunogenic antigen are usually for

A) vaccines against viral envelopes. B) vaccines against bacterial polysaccharide antigens. C) vaccines against Gram-negative endotoxin. D) vaccines against bacterial exotoxins. E) vaccines against viral nucleic acid.

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