What is the smallest number of nucleotides that must be added or subtracted to change the triplet grouping of the genetic message?

A) one
B) two
C) three
D) four


A

Biology & Microbiology

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Plant roots require oxygen to absorb nutrients efficiently

1.True 2.False

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In DNA fingerprinting, scientists look for different lengths of these DNA pieces as an indicator of differences in VNTRs. 

A. primer molecules B. point mutation C. Eco RI Restriction Sites D. restriction fragments

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The coding sequence in the DNA of ________ is normally continuous; that is, it is not interrupted by noncoding sequences.

A. mammals B. bacteria C. plants D. most insects

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Integrins are

a. transmembrane proteins. b. peripheral membrane proteins. c. components of the extracellular matrix. d. components of a desmosome.

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