Question

If a DNA sequence consists of 12 nucleotides, how many mRNA codons will there be?

Answer 1

Hint: A series of codons in part of a messenger RNA (mRNA) molecule. Each codon consists of three nucleotides, usually corresponding to a single amino acid. The nucleotides are abbreviated with the letters A, U, G and C. This is mRNA, which uses U (uracil).

Complete answer:
The hereditary code is the arrangement of rules utilized by living cells to decipher data encoded inside hereditary material (DNA or mRNA successions of nucleotide trios, or codons) into proteins. Interpretation is cultivated by the ribosome, which joins proteinogenic amino acids in a request determined by courier RNA (mRNA), utilizing move RNA (tRNA) particles to convey amino acids and to peruse the mRNA three nucleotides all at once. The hereditary code is profoundly comparative among all creatures and can be communicated in a basic table with 64 passages.
Cells interpret mRNAs by perusing their nucleotides in gatherings of three, called codons. Here are a few highlights of codons:
-Most codons determine an amino corrosive
-Three "stop" codons mark the finish of a protein
-One "start" codon, AUG, denotes the start of a protein and furthermore encodes the amino corrosive methionine
-Codons in a mRNA are perused during interpretation, starting with a beginning codon and proceeding until a stop codon is reached. mRNA codons are perused from 5' to 3' , and they determine the request for amino acids in a protein from N-end (methionine) to C-end.

The hereditary code table
The full arrangement of connections among codons and amino acids (or stop signals) is known as the hereditary code. The hereditary code is regularly summed up in a table.

When RNA is made during the process of transcription, there is one nucleotide in the RNA molecule for every one nucleotide from the template strand of the DNA molecule.
So a DNA sequence of 12 nucleotides will produce an RNA sequence which also has 12 nucleotides.

Note: A codon is like a three letter word in the language of molecular biology. Three nucleotides of RNA are one codon. Since codons do not overlap, a sequence of 12 nucleotides will contain 4 codons.