Multiple choice

Which of the following is an incorrect statement?

  1. DNA finger printing was developed by Alec Jaffrey.

  2. Non-coding repetitive sequences present throughout the chromosome are called as plasmids.

  3. DNA profiling technique is used in parental testing and criminal investigation.

  4. Exonucleases remove nucleotides from the terminal ends either 5’ or 3’ of DNA in one strand of duplex.

  5. EcoRI was isolated from the bacterium Escherichia coli RY13 strain.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Short, non-coding repetitive sequences present throughout the chromosome are called as minisatellites. A plasmid is an extrachromosomal, extranuclear DNA molecule occurring free in the cytoplasm and capable of autonomous replication.

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