Question

Biochemist Erwin Chargaff was the first to discover that, in DNA, [A]=[T] and [G]=[C]. These equalities are now known as Chargaff's rule. Using Chargaff's rule, determine the percentages of all of the bases in DNA that is 10% thymine.

Answer 1

A
`= 10`%

T
`= 10`%

C
`= 40` %

G
`= 40` %

Step-by-step explanation:

As per the Charfgaff's rule the amount of complementary bases pairs is never equal to each other .

I.e X % of A-T base pair is not equal to Y% of C-G base pairs.

Along with this, concentration of A will be equal to concentration of T and concentration of C will be equal to concentration of G

Thus, if thymine i,e "T" in a DNA is equal to
`10` %, then the concentration of "A" would be also
`10` %.

Now, the total concentration of A and T is
`20` %

So the remaining
`80` % will be the combined concentration of C and G

Since the concentration of C and G will be equal, the individual concentration of C is
`40` % and the the individual concentration of G is
`40` %