Aqa A Level Biology Paper 2 Study Guide Graded A+

DNA heated that breaks H+ bonds, add primers, add nucleotides, cool to allow annealing of primers and the heated against that DNA polymerase can join complimentary nucleotides to separate strands of DNA that can be rapped Multiple times as a cycle {Ans: Describe the polymerase chain reaction}Glucose phosphorylated using a phosphate from ATP, the ATP is then used to add another phosphate forming heroes biphosphate that is then split into 2 triose phosphates that is oxidised forming Pyruvate molecules {Ans: What is phosphorylation?}Enzymes cut double stranded mil into smaller sections SiRNA, one of the strands combined with an enzyme, SiRNA guides enzyme to mRNA by paring it's bases with complimentary ones, the enzyme then cuts the mRNA into smaller sections so can't be translated into a polypeptide so no gene is expressed {Ans: What is the effect of RNA on gene expression?}total chemical plant biomass {Ans: what is gross primary production?}Occurs in specific region of tumor suppressor gene, suppressor gene becomes inactive so their is increased cell division of the silenced gene and no transcription of the gene {Ans: What does hyper methylation do?}stroma in the fluid filled matrix {Ans: where does the LIR