molecular biology...2Q - maryam2009 - Printable Version +- USMLE Forum - Largest USMLE Community (https://www.usmleforum.com) +-- Forum: USMLE Forum (https://www.usmleforum.com/forumdisplay.php?fid=1) +--- Forum: Step 1 (https://www.usmleforum.com/forumdisplay.php?fid=2) +--- Thread: molecular biology...2Q - maryam2009 (/showthread.php?tid=642343) Pages:
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molecular biology...2Q - maryam2009 - ArchivalUser - 12-23-2011 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: 0 - ArchivalUser - 12-23-2011 a=20 percent t=30 c=40 g=10 0 - ArchivalUser - 12-23-2011 so,overall a=50 t=50 c=50 g=50 0 - ArchivalUser - 12-23-2011 I agree with Surela's answer 0 - ArchivalUser - 12-23-2011 I also agree with surela's answer 0 - ArchivalUser - 12-23-2011 25% each base. 0 - ArchivalUser - 12-23-2011 okay...50/200....>25/100..... 0 - ArchivalUser - 12-23-2011 i don't get it...even though it seems like an easy question... can someone please explain it? 0 - ArchivalUser - 12-23-2011 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 0 - ArchivalUser - 12-23-2011 OHHH!! THANK YOU!!! I would've been lost...but really, thanks |