Question

How many amino acids are coded by a set of codons that share the same first two nucleotide bases?

Answer 1

The genetic code consists of codons, which are groups of three nucleotides that code for specific amino acids. There are 64 possible codons, with 61 coding for the 20 amino acids and 3 serving as stop signals.

Step-by-step explanation:

The genetic code is a sequence of nucleotides in DNA or RNA that specifies the order of amino acids in a protein. It consists of codons, which are groups of three nucleotides. Each codon codes for a specific amino acid. In total, there are 64 possible codons, with 61 codons coding for the 20 amino acids and 3 codons serving as stop signals.

Answer 2

There are 4 possible codons
`(4^1 = 4)` for each pair of fixed first two nucleotide bases.

The principles that dictate how a gene's nucleotide sequence is translated into the amino acid sequence of a protein are known as the genetic code. A codon is a group of three nucleotides that codes for a particular amino acid or acts as a start or stop signal.

There are four nucleotides in groups of three, or 64 potential codons
`(4^3 = 64)`. Nevertheless, the synthesis of proteins requires only 20 common amino acids. many codons can define the same amino acid because some amino acids are coded by many codons. The term "degeneracy" refers to this genetic code redundancy.

So, there are 4 possible codons
`(4^1 = 4)` for each pair of fixed first two nucleotide bases.