BIO 200 Lecture Notes - Lecture 6: Thomas Hunt Morgan, Polyploid, Cytosine

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Same alleles = homozygous, and different alleles = heterozygous) Meiosis in brief: start with 2x dna -> divide once -> normal amount of dna, and. Sex chromosomes: different than other karyotypes: male chromosome is tiny (can leads to interesting forms of expression -> in sons, moms genes dominate) Adanine forms 2 hydrogen bonds with thymine and cytosine forms 3 hydrogen bonds with guanine (a with t, c with g) Rna leaves nucleus instructs other organelles to make proteins. Dna -> rna = transcription - rna -> protein = translation. The different stages of the central dogma occur in the different parts of the cell. Replication and transcription occurs in the nucleus, and translation occurs outside of the nucleus. Changes to proteins can change traits inherited to them: rna. Different nitrogenous base to pair with adanine uracil, similar in structure to thymine. Original has thymine, copy has uracil: protein.