BIO 202 Chapter Notes - Chapter 17: Cytosine, Nuclear Membrane, Dna Replication

• School: Stony Brook University
• Department: Biology
• Course: BIO 202
• Professor: Citovsky

Document Summary

Bio 202 chapter 17 phemie chan. Minimal medium uv exposure (mutagenesis) complete medium: 1- minimal medium = no growth; 2- complete medium = growth. Mutage(cid:374)esis effe(cid:272)ted p(cid:396)otei(cid:374)s/(cid:373)eta(cid:271)olis(cid:373) so the(cid:455) (cid:272)ould(cid:374)"t g(cid:396)ow i(cid:374) minimal medium anymore. Genotype: determined by the sequence of bases in dna. Phenotype: product of the proteins it produces: codon: triplet of non-overlapping nucleotides = one amino acid. Unambiguous- one codon always specifies the same amino acid. Amino acid sequence can be predicted, but (cid:272)a(cid:374)"t k(cid:374)ow the p(cid:396)e(cid:272)ise dna se(cid:395)ue(cid:374)(cid:272)e: biotechnology: introduce genes from one organism to another. A-binding protein: once it is out of the nucleus and in the cytosol, cap-binding protein gets exchanged for initiation factor for protein synthesis. In rna, you have noncoding regions called introns. P for incoming trnas and e for leaving trna. Transfer of new aminoacyl-trna to the c terminus of the growing chain. Initiation: small ribosome subunit binds to mrna, an initiator trna-(cid:373)et with a(cid:374)ti (cid:272)odo(cid:374) (cid:1007)"-uag-5" (cid:271)ase pai(cid:396)s with.