A researcher creates random copolymers of three nucleotides by mixing polynucleotide phosphorylase with guanine and adenine nucleotides in a ratio of 5 guanine nucleotides to 1 adenine. Which of the following three nucleotide copolymers would most likely be most abundant? A. GGG D. GAA E. AAA B. GAG C. AGA

Respuesta :

The answer is A. GGG.

To calculate this, a multiplication rule is used. The multiplication rule calculates the probability that both of two events will occur. In this method, the possibilities of each event are multiplied.

If a ratio is 5 guanine to 1 adenine, this means that the possibility of adenine to be created is [tex] \frac{1}{6} [/tex], and the possibility of guanine to be created is [tex] \frac{5}{6} [/tex].

Now, we will use the multiplication rule to calculate the possibility of creation each of these 5 copolymers:
GGG - 
[tex] \frac{5}{6}[/tex] × [tex] \frac{5}{6}[/tex] × [tex] \frac{5}{6}[/tex] = 0.58
GAA - 
[tex] \frac{5}{6}[/tex]  × [tex] \frac{1}{6}[/tex] × [tex] \frac{1}{6}[/tex] = 0.02
AAA - 
[tex] \frac{1}{6}[/tex]  × [tex] \frac{1}{6}[/tex] × [tex] \frac{1}{6}[/tex] = 0.005
GAG - 
[tex] \frac{5}{6}[/tex]  × [tex] \frac{1}{6}[/tex] × [tex] \frac{5}{6}[/tex] = 0.12
AGA - 
[tex] \frac{1}{6}[/tex]  × [tex] \frac{5}{6}[/tex] × [tex] \frac{1}{6}[/tex] = 0.02

According to this, the greatest possibility to be created has copolymer GGG.