RNA: Transcription and Translation

Review What is a nucleic acid? What does DNA do?

Functions to create proteins What is RNA? A nucleic acid, like DNA Functions to create proteins

How is RNA different than DNA? Single stranded

How is RNA different than DNA? Different sugar (ribose)

How is RNA different than DNA? Uracil (U) replaces thymine (T) always U always pairs with A

What is the function of RNA? Name 1 thing that differs between RNA and DNA

Creating proteins DNA contains all information needed to make a protein, but is unable to actually make protein by itself RNA acts as the go between, carrying information from DNA into the organelles that create protein

“Central Dogma”

Kinds of RNA mRNA – Messenger RNA, carries information from DNA to the ribosome rRNA – Ribosomal RNA, makes up part of the ribosome tRNA – Transfer RNA, converts information from mRNA into protein

mRNA is copied much like DNA replicates Transcription Changing DNA into mRNA mRNA is copied much like DNA replicates

mRNA pairs with a single strand of DNA DNA strand with “ATCG” produces an mRNA with “UAGC”

What does mRNA stand for? What does mRNA do? What does tRNA stand for? What does tRNA do? What does rRNA stand for? What does rRNA do?

RNA editing

Translation

Genetic Code

tRNA in Translation

Effects of mutations