11/19/14

Starter:

What do you think DNA is?

11/19/14

DNA Structure Notes

Application/Connection:

Building a DNA molecule

DNA Structure Notes 97 98

Practice: Notes

Exit:

Draw or write one thing you learned today from the notes.

November 19, 2014AGENDA

B.6 A. Students will Identify

and describe components of DNA while reading and

writing on notes and starting an activity.

1 Starter2. Notes3. DNA Molecule4. Exit

Date Lecture/ Activity/ Lab Page 10/15 Cell Transport and Homeostasis Term Notes 65-66 10/16 Osmosis in Cells Lab 67-6810/18 Observing Osmosis in Elodea 69-7010/21 Cell Analogies Poster 71-7210/24 Cell Transport Cards 73-7410/25 Experimental Design 75-7610/28-29 Photosynthesis Notes 77-7810/31 Cellular Respiration and Photosynthesis 79-8011/1 Cellular Respiration Notes 81-8211/6 Cellular Respiration Lab 83-8411/7 Photosythesis/Cellular Respiration 85-8611/13 DNA notes 87-88

Table of Contents

Date Lecture/ Activity/ Lab Page10/14 Eukaryotic and Prokaryotic Poster 67-68 10/15 Osmosis Lab 69-7010/16 Osmosis Lab Day II 71-7210/17 Osmosis Lab Day III and Quiz 73-7410/20 Cell Analogies Poster 75-7610/21 Experimental Design 77-7810/22 Test Review 79-8010/27-28 Photosynthesis Notes 81-8210/29 Photosynthesis Ws 83-8411/3 Cellular Respiration Notes 85-8611/4 Photosynthesis in Elodea 87-8811/5 Cellular Respiration in Yeast Lab 89-9011/6 Exercise Lab 91-9211/7 Photosynthesis Writing 2 93-9411/10 Photosyntheis/Cellular Respiration Poster 95-96

Table of Contents

11/19 DNA notes 97-98

DNAStructur

e70184267018426

DEOXYRIBONUCLEIC ACID

STORES AND PASSES ON GENETIC INFORMATION FROM ONE GENERATION TO THE NEXT.

DISCOVERERS

a. James Watson-American biologistb. Francis Crick- British physicistc. Maurice Wilkins- British scientist d. Rosalind Franklin- British scientist (only woman, died before the noble prize was given)

DNA StructureDNA consists of two molecules that are

arranged into a ladder-like structure called a Double Helix.

A molecule of DNA is made up of millions of tiny subunits called Nucleotides.

Each nucleotide consists of:1. Phosphate group2. Pentose sugar3. Nitrogenous base

Nucleotides

Phosphate

Pentose

Sugar

Nitrogenous

Base

NucleotidesThe phosphate and sugar form the

backbone of the DNA molecule, whereas the bases form the “rungs”.

There are four types of nitrogenous bases.

DNA StructureBecause of this complementary base

pairing, the order of the bases in one strand determines the order of the bases in the other strand.

NucleotidesEach base will only bond with one

other specific base.

Adenine (A)Thymine (T)

Cytosine (C)Guanine (G)

Form a base pair. Purines

Form a base pair. Pyrimidines

Nucleotides

A

Adenine

T

Thymine

G

Guanine

C

Cytosine

G

G

A

T

T

A

A

C

T

G

C

A

T

C

DNA StructureTo crack the genetic code found in

DNA we need to look at the sequence of bases.

The bases are arranged in triplets called codons.

A G G - C T C - A A G - T C C - T A GT C C - G A G - T T C - A G G - A T C

DNA StructureA gene is a section of DNA that codes for a

protein.

Each unique gene has a unique sequence of bases.

This unique sequence of bases will code for the production of a unique protein.

It is these proteins and combination of proteins that give us a unique phenotype.

DNA ReplicationIs the process by which a DNA molecule is

duplicated into identical DNA molecules. It occurs in the nucleus of the cell

STEPS IN REPLICATIONDuring replication, the DNA ladder separates,

or unzipsFree nitrogen bases “float” in the nucleus pair

up with the nitrogen bases on each half of the DNA

Two new DNA molecules are formed

Protein

DNA

Gene

Trait

SUMMARY QUESTIONDraw one thing you learned today from

the notes.

11/19/14

Starter:

What do you think DNA is?

11/19/14

DNA Structure Notes

Application/Connection:

Building a DNA molecule

DNA Structure Notes 97 98

Practice: Notes

Exit:

Draw or write one thing you learned today from the notes.