Question

what are the genetic code rules

Answer 1

Genetic code is a set of biochemial rules used by living cells to translate information encoded within genetic material into proteins. Genetic code is characterised by three nucleotide encodes an amino acid. The rules of Genetic code are as follows:

1. Codon is read always in 5' to 3' direction
2. The codons are non-overlapping and message have no gaps or punctuation in between.

example : code AACT, AAC could be a codon with T starting a new codon or ACT could be a codon with the first A the last letter of a previous codon but AAC and ACT cannot both be codons at the same time.

3. The message is translated in a fixed reading frame which is set by initiation codon.

example : ACGACGACGACGACG can be read in the three following ways:

• ACG ACG ACG ACG ACG (codon specifies the amino acid threonine)
• AC GAC GAC GAC GAC G ( asparagine)