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NEETZoologyMolecular Basis of Inheritance

Read the following statements and choose the correct option: 1. A Transcription unit in DNA is defined primarily by the three regions in the DNA: A promoter, the structural gene, a terminator. 2. Neither does any complementarity exist between nucleotides and amino acids, nor could any be drawn theoretically. 3. UAA, UAG, UGA are stop terminator codons. 4. The code is nearly universal: for example, from bacteria to hu

Options

  1. AAll are correct
  2. BOnly 4 is correct
  3. Conly 2 and 4 are correct
  4. DOnly 1 and 3 are incorrect

Correct answer

A. All are correct

Step-by-step solution

A Transcription unit in DNA is defined primarily by the three regions in the DNA: A promoter, the structural gene, a terminator. The DNA -dependent RNA polymerase catalyse the polymerization in only one direction, that is 5'->3'. The promoter and terminator flank the structural gene in a Transcription unit. The promoter is said to be located towards 5'- end of the structural gene.

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