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Biology 15 Online
XxAliexX:

helppp

XxAliexX:

AZ:

Have you learned of Chargaff's rule?

XxAliexX:

uh i am now lol if i did in middle school i prob forgot it already

AZ:

Basically, the % of Cytosine = % of Guanine and % of Adenosine = % of Thymine

XxAliexX:

ohhhhh thanks

AZ:

so the amount of cytosine is the same as the amount of guanine

XxAliexX:

aight thanks

AZ:

and then to find out what adenine and thymine are you have to 100% - guanine - cytosine and then divide by 2

AZ:

And it's a similar concept for the rest of the questions :) Let me know if you want me to check your answers!!

XxAliexX:

okay

XxAliexX:

tysm

AZ:

You're most welcome!!

XxAliexX:

so would 25% cytosine be half for adenine and thymine?

AZ:

can you re-word that haha there's 25% cytosine yes but you don't half that to find adenine and thymine

XxAliexX:

ok so if cytosine is 25%, how would i find adenine and thymine? I know that guanine is equal to cytosine so it would = 25%. so what is adenine and thymine? lmao

AZ:

like I said \(\color{#0cbb34}{\text{Originally Posted by}}\) @AZ and then to find out what adenine and thymine are you have to 100% - guanine - cytosine and then divide by 2 \(\color{#0cbb34}{\text{End of Quote}}\)

AZ:

the total percentage adds up to 100% so if guanine and cytosine are both 25% 100% - 25% - 25% what are we left with? then divide that by 2 because we have adenine and thymine

XxAliexX:

ooOHhhHHhhHHhh

XxAliexX:

adenine= 25% thymine=25%

XxAliexX:

?

AZ:

Spot on!!

XxAliexX:

yay

XxAliexX:

okay one more question- If cytosine is 7 then would that make g 93 or 43 or sum?

AZ:

remember cytosine = guanine

XxAliexX:

ooh im so stupid lol

AZ:

so if there's 7% of cytosine, then there's ____ % of guanine

AZ:

it takes practice, don't worry about it!

XxAliexX:

lol okay i got it now. TYSM <3

AZ:

You're most welcome!!

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