A Piece of DNA That Is 3 Kb in Length

question 3

Multiple Choice

A piece of DNA that is 3 kb in length is found in many locations throughout the genome.How would you decide whether this was a LINE or a DNA transposon?

• A) If it has more than 10,000 copies in the genome,it is a LINE;if not,it is a DNA transposon.
• B) If it has more than 10,000 copies in the genome,it is a DNA transposon;if not,it is a LINE.
• C) If it contains the sequence GCTCGATC it is a LINE;if not,it is a DNA transposon.
• D) If it uses an RNA intermediate,it is a LINE;if not,it is a DNA transposon.
• E) If it is transcribed,then it must be a LINE;if not,then it is a DNA transposon.

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