1. HW: Transcription Practice
Thursday
March 16, 2017
I can:
understand transcription as the first part of protein synthesis
Agenda
(10) Catalyst
(30) Mitosis/Meiosis Review
(15) GN: Transcription
(20) IP: Transcription
(5) Exit Ticket
Catalyst
In what form is DNA during interphase?
In what form is DNA during mitosis?
How many cells are produced in mitosis? How many are produced in meiosis?
How do the daughter cells in mitosis compare to the parent? What about in meiosis?
HW: Transcription Practice

2. HW: Transcription Tutorial Questions (if not finished)
Friday
March 17, 2017
I can:
review mitosis, meiosis, and transcription
Agenda
(10) Catalyst
(15) Kahoot!
(30) Mitosis/Meiosis Quiz
(30) Transcription Tutorial
Catalyst
If a flower egg cell has 12 chromosomes, how many chromosomes would a flower leaf cell (somatic cell) have?
What is one difference between DNA and RNA? (there are 3 you can choose from!)
*Turn in Catalyst Sheet and Progress Report*
HW: Transcription Tutorial Questions (if not finished)

3. DNA Challenge Winners….
3rd place:
2nd place:
1st place:
Jasmine, Xavion, Tylique (14 points)
TIE! Stroud, Michael, Dwayne &
Alicia, Angela, Jewel (17 points)
John, Lee, Deoveon (18 points)

4. Exit Ticket Review
1. Transcription of the sequence TTAAG produces which sequence?
A. TTAAG
B. UUAAG
C. AAUUC
D. AATTC

5. Exit Ticket Review
Fill in the blanks: DNA is copied into _____________ during transcription. In transcription: A in DNA pairs with _______ in RNA C in DNA pairs with _______ in RNA
mRNA U G

6. Exit Ticket Review
2. In the production of proteins, what is the function of messenger RNA molecules?
A. They remove amino acids from the nucleus.
B. They act as a template for the production of DNA.
C. They carry specific enzymes for breaking down the ribosome.
D. They carry information that determines the sequence of amino acids.

7. Exit Ticket Review
3. Where does transcription take place?
The nucleus

8. Mitosis and Meiosis Review Kahoot

9. Don’t forget! TOMORROW! Signed Progress Report
Mitosis and Meiosis Quiz
TOMORROW!
KNOW:
Stages of Mitosis
Order
Name
What is happening (ex: chromosomes condensing, chromosomes moving apart)
Mitosis vs. Meiosis
Products
Function
Types of cells

10. 1. As a corn plant ages, its leaves grow
1. As a corn plant ages, its leaves grow. Which process is directly responsible for the growth of these leaves?
A. the division of cells in the plant
B. the release of oxygen from the plant
C. the absorption of carbon dioxide in the stem
D. the transportation of nutrients from the rooms

11. 2. At the end of mitosis, how many daughter cells are produced?

12. 3. What is one purpose of mitosis?

13. 4. When does DNA replication occur and why is it important?

14. 5. Cell cycle checkpoints are proteins that monitor and regulate the progress of the cell cycle in eukaryotic cells. Which statement best describes what would most likely happen if a cell is permitted to progress to mitosis without the preparation stage of interphase?
a. The new cells would have all of the organelles except the nucleus.
b. The new cells would have all of the organelles except the mitochondria.
c. The number of chromosomes in the daughter cells would be the same as the number of chromosomes in the parent cell.
d. The number of chromosomes in the daughter cells would be different from the number of chromosomes in the parent cell.

15. 6. A normal cell in a particular organism has 24 chromosomes per cell
6. A normal cell in a particular organism has 24 chromosomes per cell. After mitosis how many chromosomes will be in each of the two new cells?
a. 12 chromosomes
b. 24 chromosomes
c. 36 chromosomes
d. 48 chromosomes

16. 7. Which represents mitosis?
a. Sexual cellular production
b. The division of genetic material to form a zygote
c. The splitting of a cell to produce two daughter cells identical to the parent
d. The splitting of a cell to produce two gametes with half the chromosome number of a parent

17. 8. Which best represents one fundamental difference between the processes of mitosis and meiosis?
A. Meiosis results in 4 haploid cells, and mitosis results in 4 diploid cells.
B. Meiosis results in 4 haploid cells, and mitosis results in 2 diploid cells.
C. Meiosis results in 2 diploid cells, and mitosis results in 2 haploid cells.
D. Meiosis results in 2 diploid cells, and mitosis results in 4 haploid cells.

18. 9. Which best describes crossing over?
A. It occurs during mitosis and reduces the chances of genetic variation in organisms.
B. It occurs during mitosis and increases the chances of genetic variation in organisms.
C. It occurs during meiosis and reduces the chances of genetic variation in organisms.
D. It occurs during meiosis and increases the chances of genetic variation in organisms.

19. 10. Whether an organism reproduces sexually or asexually, which must happen before the cell divides?
A. meiosis
B. nondisjunction

C. crossing­over

D. DNA replication

20. 11. What are the results of cell division by meiosis?
A. two genetically different cells
B. two genetically identical cells
C. four genetically different cells
D. four genetically identical cells

21. 12. Which process during meiosis causes the zygote to contain either too many or too few chromosomes? 

A. segregation 

B. crossing over
C. nondisjunction

D. independent assortment

22. 13. If the diploid number of chromosomes of a dog is 78, how many chromosomes would be in each gamete at the end of meiosis? 

A. 39 chromosomes 

B. 46 chromosomes
C. 78 chromosomes
D. 156 chromosomes

23. 14. What phase is this showing (if meiosis, indicate I or II)?

24. 15. What phase is this showing (if meiosis, indicate I or II)?

25. 16. What phase is this showing (if meiosis, indicate I or II)?

26. 17. What phase is this showing (if meiosis, indicate I or II)?

27. 18. What phase is this showing (if meiosis, indicate I or II)?

28. Choose your best shooter
FINAL QUESTION!
Choose your best shooter

29. 19. Meiosis produces cells in the haploid state
19. Meiosis produces cells in the haploid state. In which process is the chromosome number restored to the diploid state?

Ovulation
Fertilization
Nondisjunction
Spermatogenesis

30. CHAIRS BACK
NOTES TIME

31. DNA provides the instructions for making proteins
DNA provides the instructions for making proteins. The Central Dogma of Biology tells us how proteins are made from DNA instructions.
The process of copying DNA’s instructions into RNA is called transcription.

32. RNA Ribonucleic acid (RNA) is a long chain of nucleotides.
nucleotides contain ribose sugar (instead of deoxyribose)
nitrogen bases: AUCG
single-stranded molecule
ribose sugar

33. Types of RNA Messenger RNA (mRNA)
carries the message of DNA from the nucleus to the ribosome
Ribosomal RNA (rRNA)
makes up the ribosome
Transfer RNA (tRNA)
carries an amino acid to the ribosome and binds to mRNA

34. DNA is too big…but mRNA is small enough to leave the nucleus!
DNA and the instructions it contains is trapped in the nucleus because it is too large to get out.
DNA is too big…but mRNA is small enough to leave the nucleus!

35. DNA’s instructions must be copied into a smaller form: messenger RNA (mRNA). This process is called transcription.
RNA polymerase breaks the hydrogen bonds in DNA and uses it as a template to create a single strand of mRNA.

36. mRNA leaves the nucleus with its message and heads for a ribosome.

37. Base-pairing During Transcription
Because RNA has the base uracil (U) instead of the thymine (T) in DNA, it has slightly different base-pairing rules.

38. T A C G A T T G A A U G C U A A C U Guided Practice
What is the RNA message created from the following sequence of DNA?
T A C G A T T G A
DNA
A U G C U A A C U
RNA

39. A A C T G C C T A U U G A C G G A U Guided Practice
What is the sequence of mRNA that is made from the following strand of DNA?
A A C T G C C T A
DNA
U U G A C G G A U
RNA