Biology for Life

  Skyline High School IB Biology

 
 

 

  Units of Study

Science of Biology
Prokaryotic Cells
Eukaryotic Cells
Basics of Biochemistry
DNA and Electrophoresis
Cell Cycle & DNA Replication
Protein Synthesis & Mutations
Protein Structure & Function
Genetic Technology
Viruses
Classification & Phylogenies
Diversity of Life
Theoretical Genetics
Meiosis and Reproduction
Variation and Evolution
Origins and Speciation
Human Evolution
Ecosystems & Energy Flow
Circulatory system
Respiratory system
Cellular Respiration
Photosynthesis
Digestion
The Kidney 
The Liver
Skeletal System
Immune System
Endocrine System
The Nervous System
Nutrient Cycles
Human Effects
Communities & Succession
Earth's Biomes
Diversity and Conservation
Population Dynamics
Population Genetics
Plant structure and Growth
Plant Transport
Angiosperm Reproduction
Enzyme Action
Muscles and Movement
Behavior

 

 

 

 

 

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Assessment Statements:

ü4.4.1

 

Outline the use of polymerase chain reaction (PCR) to copy and amplify minute quantities of DNA. 

 

ü4.4.2

State that, in gel electrophoresis, fragments of DNA move in an electric field and are separated according to their size. 

 

ü4.4.3

State that gel electrophoresis of DNA is used in DNA profiling. 

 

ü4.4.4

Describe the application of DNA profiling to determine paternity and also in forensic investigations. 

 

ü4.4.5

Analyze DNA profiles to draw conclusions about paternity or forensic investigations. 

 

ü4.4.6

Outline three outcomes of the sequencing of the complete human genome.

 

ü3.3.1

Outline DNA nucleotide structure in terms of sugar (deoxyribose), base and phosphate.

 

ü3.3.2

State the names of the four bases in DNA.

 

ü3.3.3

Outline how DNA nucleotides are linked together by covalent bonds into a single strand.

 

ü3.3.4

Explain how a DNA double helix is formed using complementary base pairing and hydrogen bonds.

 

ü3.3.5

Draw and label a simple diagram of the molecular structure of DNA.

 

ü4.1.1

State that eukaryote chromosomes are made of DNA and proteins.

 

ü7.1.1

Describe the structure of DNA, including the antiparallel strands, 3’–5’ linkages and hydrogen bonding between purines and pyrimidines.

 

ü7.1.2

Outline the structure of nucleosomes.

 

ü7.1.3

State that nucleosomes help to super coil chromosomes and help to regulate transcription

 

 

 

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What You Should Be Able to Do:

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Draw the basic structure of a DNA nucleotide.

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Draw the molecular structure of deoxyribose and number the carbon atoms.

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Identify the four bases of DNA based on the numbers of rings (purines vs. pyrimidines) and the number of hydrogen bonds it can form.

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Outline how the DNA nucleotides are linked together by covalent bonds into a single strand (i.e., to which carbon atoms of the deoxyribose are the phosphates and bases attached?)

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Know which bases are capable of complimentary pairing.

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How many bases are there per complete turn of the helix?

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Outline the structure of nucleosomes, referring to the correct number of histone proteins.

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Describe what is meant by “anti-parallel.”

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Identify the 5’ and 3’ ends of a DNA molecule.

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Describe the structure of the DNA found inside mitochondria and chloroplasts, and explain how this is evidence for the endosymbiotic theory.

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What are restriction enzymes? 

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Where are they found naturally?  What is their role in nature?

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What is a restriction site? 

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Define palindrome. 

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How are restriction enzymes named?

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Contrast sticky vs. blunt ends.

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Why are restriction enzymes used in DNA electrophoresis?

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What is electrophoresis?  For what purposes is it used?

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Based on what properties are fragments separated?

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What are the functions of the buffer and loading dye?

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Describe the process of DNA fingerprinting. 

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Read a DNA fingerprint to determine relatedness or forensic guilt. 

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Be able to read a pipette to determine its range of volume measurement.

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Class Activities:

Nucleic acids web assignment

Note on DNA structure

DNA structure and components WS

DNA structure "pop" quiz

DNA models (click here for information about using an actual DNA sequence)
Race for the Double Helix video questions

DNA history readings and questions

Cheek cell DNA extractions

Extraction Inquiry Planning

Electrophoresis notes

PCR notes

Restriction enzyme notes

Restriction enzymes cut and paste

Modeling electrophoresis

Electrophoresis sort and see worksheet

Pipette practice WS and reading

Human genome project web quest

Pipette practice mini-lab

Electrophoresis lab

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Key Terms:

3'

micropipette

5'

mitochondria

adenine

naked DNA

agasose gel

nitrogenous base

antiparrallel

nucleic acid

chloroplast

nucleoid 

chromatin

nucleosome

chromosome

nucleotide

covalent bond

nucleus

crick

palandrome

cytosine

pentose

deoxyribonucleic acid

phosphate

deoxyribose

plasmid

DNA fingerprint

purine

electrophoresis

pyrimidine

Franklin

restriction enzymes

guanine

restriction site

helicase

thymine

histone

tracking dye

hydrogen bond

Watson 

microliter

X ray diffraction

 

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Helpful Links:

 

 

   
   
"When we tug at a simple thing in nature, we find it attached to the rest of the world."  John Muir