BIL 250 Lecture Notes - Lecture 6: Nucleic Acid Double Helix, Chromatin, Hydrogen Bond
15 Sep 2016
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Document Summary
Francis crick comes into play from the beginning to even later. Z-dna- taller and skinnier, left-handed, repeating unit is 2bp instead of 1 mrna- protein coding sequence trna- attached to 3" end, brings it to the ribosome snrna- utilized in intron removal mirna- hairpin, complementary pairs and inhibits translation. Double helix beads on a string chromatin beads pack tightly nucleosomes go to chromatin fiber looped domains form chromosomes. Birds with hyperactive metabolism can have smaller genomes that are more efficient. There are 3 different types of polymerases in eukaryotes and 1 in prokaryotes. Genetics test 1 dntp- same fundamental mechanism as gtp and atp. Humans have a moderately sized genome, other plants have bigger genomes. Circular genome molecule has a lot of tension. Rolling circle: nick the dna and replicate off of it. You can make a copy of the genome at many points of the genome. When rna primers are removed, there is a gap.
