Respuesta :
Answer:
The correct answer is 10%
Explanation:
According to the chargraff's rule, the ratio of purine and pyrimidine is equal to 1 which means purine is equal to pyrimidine. It also says that some of adenine and guanine is equal to the sum of cytosine and thymine. So adenine must be equal to thymine and guanine must be equal to cytosine.
So if cytosine amount is 40% then the amount of guanine would be also 40% so the remaining 20% would be made by adenine and uracil in RNA so adenine would make 10%. Therefore the correct answer is 10%.
In the given case, if the content of cytosine is 40% in RNA then the adenine content will be 10%.
What is Chargaff's rule?
On the basis of the Chargaff's rule, the ratio of pyrimidine and purine is equivalent to 1. This signifies that the content of purine is equivalent to pyrimidine and vice versa. Apart from this, based on the rule, the sum of the adenine and guanine is equivalent to the sum of uracil and cytosine.
Therefore, guanine is equivalent to cytosine and uracil is equivalent to adenine. So, if the concentration of cytosine is 40 percent it signifies that the concentration of guanine will also be 40 percent. Now the remaining 20 percent would be of uracil and adenine, which is equal to 10 percent each.
Thus, the adenine content in the given case will be 10 percent.
Find out more information about Chargaff's rule here:
https://brainly.com/question/14087744
