BIOCHEM 2EE3 Lecture Notes - Lecture 8: Dna Replication, Start Codon, Transfer Rna
17 Apr 2016
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Document Summary
Human chromosomes are 1. 3 10 um long in most condensed state. Each chromosome contains a single dna molecule and many proteins. Genome is one haploid set of chromosomes with the genes they contain; including the geneic material of an organisms. Human genome consists of 3 x 109 base pairs in 23 chromosomes: unwounded length of dna in a single cell is roughly 1 m, nature packs the dna within the chromosome. Dna winds around histones to form nucleosomes that condense in 30 nm diameter ilaments: some parts of the dna molecule are not accessible to all proteins. Condensed chromosomes ilaments are atached to a protein scafold. Dna replicaion dna informaion is transcribed into rna rna informaion is translated into protein. Dna replicaion is when cells divide; from one cell into 2 daughter cells (almost idenical cells are produced) Which molecules has a higher molecular weight? mrna vs.
