1. Question of the Day 5-10 What is a codon? Where is it found?
What is an anticodon? Where is it found?

2. Warren P Dominic Mark Matt Lizzie Khalid Lai Fang Tim Christina
Shontay Vaughn
Maria
Kayla Beers
Richard Levick
James P
Travis Graff
Corey
Kohl
Mike
Ashley
Windows
DOOR
FRONT OF THE ROOM

3. Unit # 8 Test will be Friday 5-13!
Announcement
5-10
Unit # 8 Test will be Friday 5-13!

4. Translation Summary

5. Review DNA

6. REVIEW
Replication fork

8. Question of the Day
5-11
During translation, the ____ moves along the mRNA and builds the amino acid chain with the help of ____ molecules.

9. Mutations
Mutation – random error or change in a DNA sequence that may affect the whole chromosome or just one gene
What can cause a mutation? Copying errors by the polymerase, UV radiation, chemicals, viruses
Are mutations always bad? NO. Beneficial mutations can lead to evolutionary change.

10. Point Mutation – a change to a single base pair in DNA
This kind of error usually changes only one amino acid

11. Mutations
Frameshift Mutation – a mutation in which a base or bases are added or deleted from the DNA sequence
This would cause every codon to be different after that addition / deletion

12. Mutation Examples: Deletions – part of chromosome is lost
Insertions – part of the chromosome breaks off and rejoins it’s sister chromatid

13. Mutations
Nondisjunction – failure of homologous chromosomes to separate properly during meiosis
 Trisomy – when a gamete (sex cell) has an extra chromosome
So in humans there would be 47 chromosomes
If the extra chromosome is # 21 in humans = down syndrome

15. Mutations Monosomy – absence of a chromosome – most do not survive
Females can be missing the X chromosome and survive
WHY? B/C the other X chromosome can make up the difference

16. Assignments
5-9
DNA Replication, Transcription, and Translation Handout
My.hrw.com
Chapter 4
Username = dhe5n
Password = p5e8n
Review Homework

17. Question of the Day
5-12
Which mutation is more likely to cause a problem a point mutation or a frameshift mutation? WHY?

18. Review
The type of mutation when a piece of the chromosome breaks off and is reinserted backwards =

19. Students Choice 5-4 You may:
Take 10.2, 10.3, & 10.4 self-check quizzes for a question point each (by yourself or w/ one partner)
Work on your review assignment
Make notecards
Study with a buddy

20. Announcement
5-12
Unit # 8 Test will be Friday (due to testing)!

21. Quick Talk
DNA replication
Point mutation
Thymine
Helicase
Peptide bond
Ribosome
mRNA
Translation
DNA polymerase
Frame shift mutation
Hydrogen bond
Transcription

22. Activity Come up w/ 6 questions. You do NOT need anwers.
Transcription - Last names A through J
Translation - Last names K through Z
Activity
Come up w/ 6 questions. You do NOT need anwers.

24. = process of making mRNA from DNA
Replication = process of making DNA copy
DNA
= process of making mRNA from DNA
= single stranded nucleic acid
C_____________
= process of making mRNA from DNA
Protein
D__________
= organelle that translates
Protein

26. A_____________
tRNA
D_____________
B___________
C___________
E___________