BIO_SC 1010 Lecture Notes - Lecture 18: Adenine, Genetic Code, Uracil
Document Summary
Blood types phenotypes: a, b, and i genotypes: aa, ai, bb, bi, ii, ab. Presence or absence in rh proteins on surface of your red blood cells. Some traits are influenced by environment; not always controlled merely by genetics coded for in dna. Epigenetic inheritance: traits passed that do not involve dna sequence chemical modifications of dna can prevent it from being read properly. Examples (combinations of genetics + environment) cancer alcoholism anxiety schizophrenia. Rosalind franklin contributed to understanding of dna, rna, viruses, coal, & graphite. Francis crick and james watson figured out what the inside of a cell did. Double helix (2 strands) structure formed by 2 strands of dna nucleotides bound together. Individual nucleotides link together to form a strand of dna. Arrangement of agct in the human genuine is what provides genetic code. Nitrogen-containing base -- all of life"s info is written using this 4 letter alphabet. Produces 2 copies of the original dna molecule.
