Question

With respect to the genetic code reading frame which of the following is wrong?

• A. 5’ → 3’ direction reading frame
• B. The code is non – overlapping
• C. No gaps present
• D. Flexible reading frame

Answer 1

Answer:

D. Flexible reading frame

The message from the mRNA is translated in a fixed reading frame, which is set by the initiation codon. Translation starts at an initiation codon located at the 5’ end of protein encoding sequence. Because codons are non – overlapping and consists of the three consecutive nucleotides, a stretch of nucleotides could be translated in principle in any of the three reading frames.