BIOL 1103 Study Guide - Midterm Guide: Histone H1, Messenger Rna, Complementary Dna
16 Jun 2016
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Nucleosome: 10 nm fibre, where dna is wrapped around a histone protein core, making the basic structural unit of chromatin. Transcription: the mechanism by which the information encoded in dna is made into a complementary. Translation: the use of the information encoded in the rna to assemble amino acids into a polypeptide. Messenger rna (mrna): the rna molecule that serves as a template for protein synthesis. Ribosomal rna (rrna): the rna component of ribosomes. Transfer rna (trna): the rna that brings amino acids to the ribosome for addition to the polypeptide chain. Rna polymerase iii: (euk) makes trna and some rrna. Dna polymerase iii: carries out dna s(cid:455)(cid:374)thesis (cid:271)(cid:455) e(cid:454)te(cid:374)di(cid:374)g fro(cid:373) the rna pri(cid:373)er i(cid:374) a 5" to 3" dire(cid:272)tio(cid:374). Dna polymerase i: removes rna primers and replaces it with dna nucleotides. Promoter: the site at which rna polymerase binds for initiating transcription of a gene.
