[问答题]
Gel electrophoresis i
u 4wh(ic 7 wks 9:kbn5//aoslms a technique often used to analyse DNA molecules.
ty,29v7 (bucsr uj2j 4oj1::jpfhele It includes a gel and an electric f
p:ycr4suljjt7e h : ej2v1f,jbo( u92ield. The diagram below shows the outcome of gel electrophoresis.
1.DNA is a type of nucleic acid. State one location where DNA is found in cells.
2.Deduce, with a reason, which direction the DNA fragment moves through the gel.
3.Distinguish between the functions of DNA and RNA in unicellular organisms.