HW: Transcription and Translation Pre-AP Biology Search for the YouTube video “Transcription and Translation” by Alyssa Dolny. Complete on Page 27 (use another sheet of paper and attach to I.A.N. later) of your I.A.N. using Cornell Notes. Due Friday.

Let’s get some things straight… Replication- to make an exact copy Replication is like making a photocopy Transcription- to transfer from one recording form to another Transcription is like taking notes (same information, different form)

Well… Copies are good to have as a backup—it’d be bad if something happened to DNA You can just put down the part of the information you need—shorter/simpler Think of it like this: DNA = master copy RNA = blueprints…you don’t need the blueprints for the whole house to build the foundation

Central Dogma We’re only talking about the first part today  Translation Transcription DNA RNA Protein Ribosome Nucleus

Transcription (big ideas) Is the first step in making a protein (polypeptide) Occurs in the nucleus DNA is used to make RNA RNA is then sent out into the cell to make proteins It’s usually just a section of the DNA strand (gene) that codes for one specific protein

There are three main differences between DNA and RNA: 1) The sugar in RNA is ribose instead of deoxyribose. 2) RNA is single-stranded. 3) RNA contains uracil instead of thymine.

Comparing base pairing rules DNA to DNA DNA to RNA C  G G  C T  A A  T C G G C T  A A U

Summarize the DNA to RNA base pairing rules in exactly 8 words.

Messenger RNA (mRNA) carries copies of instructions from DNA in the nucleus to the ribosome to make proteins.