Homework Answers
DNA STRAND - PERCENTAGE OF EACH BASE
ADENINE CYTOSINE GUANINE THYMINE
STRAND1 35 22
STRAND2 18 32 32 18
According to CHARGAFF, S RULE " The amount of guanine should be equal to cystosine and the amount of adenine should be equal to thymine
A=T
G=C Also A+G+C+T=100
A+G=C+T
SO, Here A= 18 Then T= 18
SO 18+18=36
100-36=64 SO HALF OF 64 IS 32 ie G=32 and C= 32
This rule is only appicable double strand DNA
2. semi conservative replication is the mechanism by which DNA replicate in cells .The double stranded DNA unwinds ,hydrogen bonds are broen between the two strands by the enzyme DNA helicase.The exposed bases on the single stranded DNA complimentary base pair to nucletides.
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