Nitrogenous Base question (1 Viewer)

[BrookSteven]

Question 20 of the 2007 HSC paper asked to complete a table by "identifying the other three base types and calculating the percentage of each base type in the section of double-stranded DNA".

Bases: Percentage:
Adenine 20
Thymine ?
Guanine ?
Cytosine ?


Does anyone know the answer to this?

 

[Just.Snaz]

You know that for EVERY adenine base, there is a corresponding Thymine base. So if there's 20 for adenine then there's 20 for thymine. Same goes for Guanine and Cytosine so you take the remaining %, ie, 60 and divide by two because they have to be equal so it's
A --> 20
T --> 20
G --> 30
C --> 30

 

[BrookSteven]

Thanks alot. That is what I originally had for the answer, but I was going off of nothing but intuition. I feel kind of silly now for not looking at it that way.

 

[obimoshman1234]

lol





its all i can say cause i thought u were going to ask something hard