Presentation is loading. Please wait.

Presentation is loading. Please wait.

Transcription and Translation

Similar presentations


Presentation on theme: "Transcription and Translation"— Presentation transcript:

1 Transcription and Translation
How Proteins Are Made

2 Central Dogma The central dogma of biology describes just that.
It provides the basic framework for how genetic information flows from a DNA sequence to a protein product inside cells. This process of genetic information flowing from DNA to RNA to protein is called gene expression.

3 Write this down! DNA---mRNA—amino acids—protein shape—protein function—cell function

4 View: https://www.youtube.com/watch?v=9kOGOY7vthk

5 Make a complimentary strand of DNA
TAC CTT GAT TTT AGG AGA TAT AGT CAG TTG ACC TTT CCA ATT ATG GAA CTA AAA TCC TCT ATA TCA GTC AAC TGG AAA GGT TAA

6 Transcribe complimentary DNA into mRNA
cDNA ATG GAA CTA AAA TCC TCA ATA TCA GTC AAC TGG AAA GGT TAA mRNA UAC CUU GAU UUU AGG AGU UAU AGU CAG UUG ACC UUU CCA AUU

7 Tranfer RNA tRNA what triplet codon will link up to form an amino acid?
tRNA UAC CUU GAU UUU AGG AGU UAU AGU CAG UUG ACC UUU CCA AUU A) Tyro B)leu C)Asp D)Phenyl E) Arg F)Ser G) Tryo H)Ser I)Glutan J) Tryo K) Therm L)Phenyl M)Pro N)Isote list the amino acids below

8 Answer these questions
1.  Why must the DNA strands unwind and separate before transcription can take place? 2.  How does the base sequence of the RNA transcript being formed compare with the sequence on the template strand? 3.  What happens to the double stranded DNA as the RNA polymerase moves to the right? 4.  What happens to the RNA transcript after it separates from the DNA?

9 1.  Why must the DNA strands unwind and separate before transcription can take place?
To allow the enzyme to unzip the double helix and break the hydrogen bonds 2.  How does the base sequence of the mRNA being formed compare with the sequence on the template strand? T change to U 3.  What happens to the double stranded DNA as the RNA polymerase moves to the right? It checks it for errors and splices out any problems 4.  What happens to the mRNA transcript after it separates from the DNA? It goes out into the cytoplasm to link up with tRNA to create amino acids

10 To Review! View:


Download ppt "Transcription and Translation"

Similar presentations


Ads by Google