BM1000 Lecture Notes - Lecture 17: Guanine, Pyrimidine, Helicase
Document Summary
The genetic material within cells encodes the information necessary for life and reproduction. All living thing reproduce by copying their genetic material and passing it on to their offspring. Mendel explained inheritance in the mid 1800s, but the chemical identity of genes was only discovered 100 years later. The structure of dna is a double helix, which is similar to a rope ladder which has been twisted into a spiral. A double helix is two separate strands of. Dna that are linked together by hydrogen bonds. ich. Bases pair up to form the "rungs" of the. Bases pair up to form the "rungs" of the complementary double helix ladder. A purine (double ring) binds to a pyrimidine (single ring) and is stabalised via hydrogen bonding (van der. Summary of structural differences between dna and rna: Phosphate (of the next nucleotide) phosphate (of the next nucleotide) The total number of purines is equal to the total amount of pyrimidines.
