Question

Какую длину имеет участок молекулы ДНК, кодирующий участок полипептида, содержащего 20 аминокислот, если расстоя­ние между двумя нуклеотидамиравно 0,34 нм.?

Answer 1

1 аминокислота = 3 нуклеотида, 20*3=60
60*0,34=20,4 

Answer 2

The Length of DNA Coding Region for a Polypeptide Containing 20 Amino Acids

The length of the DNA coding region for a polypeptide can be calculated by considering the number of nucleotides required to code for each amino acid. In DNA, each amino acid is encoded by a sequence of three nucleotides, known as a codon. Therefore, the number of nucleotides required to code for a polypeptide containing 20 amino acids can be calculated by multiplying the number of amino acids by three.

To calculate the length of the DNA coding region, we can use the following formula:

Length of DNA coding region = Number of amino acids x 3

Given that the polypeptide contains 20 amino acids, we can substitute this value into the formula:

Length of DNA coding region = 20 x 3

Simplifying the equation:

Length of DNA coding region = 60 nucleotides

Therefore, the length of the DNA coding region for a polypeptide containing 20 amino acids is 60 nucleotides.