molecular biology...2Q - maryam2009

[ArchivalUser]

One of the strands of DNA has the composition: 30 % A, 20 % T, 10 % C and 40 % G.
What is the overall base composition of the double-stranded DNA?

Enter numbers:

%A:
%T:
%C:
%G:

[ArchivalUser]

a=20 percent
t=30
c=40
g=10

[ArchivalUser]

so,overall
a=50
t=50
c=50
g=50

[ArchivalUser]

I agree with Surela's answer

[ArchivalUser]

I also agree with surela's answer

[ArchivalUser]

25% each base.

[ArchivalUser]

okay...50/200....>25/100.....

[ArchivalUser]

i don't get it...even though it seems like an easy question...
can someone please explain it?

[ArchivalUser]

30 % A, 20 % T, 10 % C and 40 % G.....=100%
30%..T,.20%..A,..10%..G and .40%.C.....=100%
............................................................=200%
30+20....A....50/200....25/100
20+30....T....50/200....25/100
10+40....C....50/200....25/100
40+10....G....50/200....25/100

[ArchivalUser]

OHHH!! THANK YOU!!!

I would've been lost...but really, thanks