Translation

Catalyst: DNA is the genetic code. What part of

DNA is the genetic code? Choose an answer and then explain why the other choices are wrong.A. The phosphate-sugar backboneB. The sugarC. The phosphateD. The base sequence

Convert this strand of DNA into mRNA. AGCATCGAGTAA

Agenda

Catalyst Review HW Review Transcription/Central Dogma

Review Translation Codon Bingo ROBBERY MYSTERY! Exit Question

Catalyst Review

DNA is the genetic code. What part of DNA is the genetic code? Choose an answer and then explain why the other choices are wrong.A. The phosphate-sugar backboneB. The sugarC. The phosphateD. The bases

The bases must be the code since they form a sequence that changes throughout DNA.

Sugar-phosphate backbone holds the DNA’s shape.

Catalyst Review

Complimentary base pairing! Except…

AGCATCGAGTAA UCGUAGCUCAUU

RNAloves

U

HW Review

Objectives

By the end of today, SWBAT… Translate DNA and mRNA into an amino acid sequence.

Describe the relationships among DNA, RNA, proteins, and traits.

USE THE DNA CODE PROVIDED TO MAKE A COMPLEMENTARY RNA COPY

U C G

A G C C T G T A G G C A

G A C A U C C G U

USE THE DNA CODE PROVIDED TO MAKE A COMPLEMENTARY RNA COPY

C G U

G C A T T C A A G C A T

A A G U U C G U A

Describe two reasons why this is TRANSCRIPTION…

Time for Notes…. Get ‘em out!

Translation

Key Point #1: Translation is the process by which the

ribosome reads the mRNA and uses its information to make protein

Protein

mRNA

The mRNA code

The ribosome reads the mRNA one codon at a time. A codon is a set of three bases.

Every codon contains the information to make one amino acid.

Many amino acids make up a protein.

Table of CODONST

hird

Le

tter

From your three letter codon, you can use this table to figure out what amino acid it is.

Let’s Practice

Codon: UACWhat is the amino acid?

Tyrosine!

Codon BINGO!!!

What are proteins used for again? Proteins go on to cause ALL traits. They

are important.

Key Point #3: If you change someone’s DNA, that will change its traits.

Add to the Central Dogma????

DNA

RNA

Protein

(Trait)

a change here…

means a change here

and here

and finally here

OH MAN THERE WAS A ROBBERY But luckily they have some DNA

evidence.

Weirdly, they asked me to get my Biology class to solve it!

Make sure you make a sketch of the suspect! That jerk!

Exit Question

Convert this strand of DNA to an amino acid sequence. AAACAAGCACCC

If you change someone’s DNA, their traits will change. Explain why this is true.