Which is not a description of a gene?
1 )
a length of DNA which carries coded information as a sequence of nucleotides that can result in the formation of a polypeptide chain
any section of a molecule that has two strands, each with a sequence of nucleotides that are complementary to each other and are held together by hydrogen bonding
3 )
a sequence of nucleotides which can be copied by complementary base pairing and then be translated at a ribosome
4 )
a sequence of nucleotides that can be transcribed using a polymerase enzyme and free activated nucleotides and which results in the formation of a messenger RNA molecule
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