RNA is like a computer disk or flash drive

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RNA is like a computer disk or flash drive RNA copies DNA Ch. 10.2 (p.190-192) RNA = ribonucleic acid; has an extra oxygen, otherwise very similar to DNA Big difference: instead of using the nucleotide Thymine (T), RNA uses nucleotide Uracil (U) So now A—U and G—C RNA is like a computer disk or flash drive Copies information on one computer: DNA in nucleus Takes info to another computer: ribosomes outside the nucleus

1. mRNA = messenger RNA, the RNA acts as a messenger RNA copies DNA Ch. 10.2 (p.190-192) RNA comes in 3 types 1. mRNA = messenger RNA, the RNA acts as a messenger Single uncoiled chain of RNA Carries genetic info from DNA to outside the nucleus

Transcription = literally means rewriting , RNA copies DNA Ch. 10.2 (p.190-192) Transcription = literally means rewriting , Rewriting info on DNA to a molecule of mRNA Promoter region on DNA is where to start copying, termination region on DNA is where to stop copying

Single chain of about 80 nucleotides folded into hairpin shape RNA copies DNA Ch. 10.2 (p.190-192) RNA comes in 3 types 2. tRNA = transfer RNA, the RNA transfers the info from mRNA into proteins Single chain of about 80 nucleotides folded into hairpin shape Kind of looks like a t Will discuss in 10.3

3. rRNA = ribosomal RNA, RNA that makes the ribosomes RNA copies DNA Ch. 10.2 (p.190-192) RNA comes in 3 types 3. rRNA = ribosomal RNA, RNA that makes the ribosomes Ribosomes are where proteins are made Will discuss in 10.3

RNA copies DNA Ch. 10.2 (p.190-192)