Quick Write (5 min.)• Why do you think the library

holds some books for reference only?

• If you cannot borrow a book, how do you take home the information in it?

• DNA does not leave the nucleus yet it controls the activity of the cell. How?

Plan for February 25th

Review DNA

What is RNA? Chapter 13.1

Progress Report and Test Grades

Forecasting (4th Period)

Turn In Stuff! Coursework Packet Strawberry Lab

Vocabulary Jigsaw

Define it

What it is:

Facts description characteristics

What it is NOT.

Word in the middle

Do: Students with the same

are your Expert Group.

In your Expert Group, define the word and make a poster for the word.

Finish By: 10 minutes total. (Probably not enough time to make it pretty!)

When Done: Get it approved by the teacher. We will be using these in a Gallery Walk.

Highlighted Word

Vocabulary Jigsaw Part 1

Vocabulary Jigsaw Part 2Do: Visit all the posters to fill in the definitions of the words on the handout.

Put: EVERYONE writes EVERY definition on their paper.

Finish By: 15 minutes.

When Done: Return to your seat and work on Part 2 until time is called.

Part 3: Preview Figures and Tables

Do: On page 2, follow the instructions for Part 3.

Put: Write in space provided.

Finish By: 5 minutes.

When Done: Lecture is next.

Figure 13.1

Figure 13.2

Figure 13.3

Figure 13.4

The completed packet is DUE on Thursday, 2/27

DNA Review DNA controls activities of the cell.

DNA• Stores• Copies• Transmits

Shape: Double helix formed from• Chains of nucleotides.

Heredity Information

DNA Review

Label the nucleotide Check your answer

Chap.13.1 Learning Targets

• How is RNA different from DNA?

• How does the cell make RNA?

How does information

flow from DNA to RNA to direct the

synthesis of proteins?

Chapter13

Central Dogma

• The central dogma of biology is that DNA encodes the information to make RNA.

• RNA molecules function together to form proteins.

DNA RNA Protein

Transcription (in the nucleus)

• DNA is transcribed in the nucleus into RNA. Enzymes & proteins unzip the DNA double helix.

• RNA polymerase uses one (1) DNA strand to make an RNA copy of that gene.

• mRNA is then shipped out of the nucleus into the cytoplasm.

• Base PairingDNA Pairs

withRNA

Adenine UracilThymine Adenine

Cytosine Guanine

Guanine Cytosine

DNA versus RNA

• RNA has uracil in place of thymine.

• Ribose in place of deoxyribose.

Transcription (in the nucleus)

What does the prefix “de” mean?So, how are ribose and deoxyribose different?How can you remember which sugar goes with RNA?

Transcription (in the nucleus)

• What is the mRNA formed from the following Template strand of DNA?

C C G G A T T A C G

G G C C U A A U G C

DNA Template

mRNA strand

Transcription (in the nucleus)

• What is the mRNA formed from the following Template strand of DNA?

G G A C T G A T T

C C U G A C U A A

DNA Template

mRNA strand

The DNA is able to be reused to continue producing necessary proteins.

Transcription (in the nucleus)

13.1 RNA Packet• Do: Complete the

remainder of the packet.• Put: Write on the packet.• Finish By: We will work on

this until 5 minutes to the end of class.

• When Time Ends: Progress reports and Test Results.

DUE: Completed packets will be stamped during class on Thursday, 2/27.

Grading Day Approaches• Remember, a test score

is just one piece of evidence used to compute your grade.

• Labs, projects, packets, and participation all factor in to your course grade.

• If you scored <69%, see me about making test corrections to raise your grade to passing.

Meiosis & DNA Test Results

The revised base points for the test = 35. I dropped 3 questions that performed Statistics [Raw (Percent out of 35)]: Mean: 23.7 (68%) Median: 27 (77%) Spread: 9.13

Test Grade Cutoffs

[Raw Score (Percent out of 35)]

• A: 31.5-40 (90% to 114%)• B: 28 - 31 (80% to 89%)• C: 24.5 - 27.5 (70% to 79%)• D: 17.5-24 (50% to 69%)• F: 0-17 (< 50%)

March 7, 2014 is the deadline to make up the test or complete test corrections.

If you were absent—make up the test ASAP. During 1st Lunch in N221 In the Testing Center during 7th/8th Before/After school (pre-arranged!)