Evolution Quiz
If time; Beyond the Elements
Two Short Evolution Videos (class choice)
Evolution Practice Exam Evolution Practice Exam Key
Lynn Margulis
Lynn Margulis developed the endosymbiotic theory of cells in 1967. This theory proposes that mitochondria and chloroplasts were bacteria that were taken into a larger cell and created a symbiosis.
Although her theory was not widely accepted at the time, there is now a preponderance of supporting evidence.
Mitochondria and chloroplasts have bacteria like DNA and ribosomes.
Announcement, Evolution Quiz scheduled for next Wednesday, May 31st.
Thanks for your patience with my unexpected absence today, and for your kindness towards Mr. Jensen.
When I return our discussion on sexual selection. Today's class will give you a jump on your homework which I hope is helpful.
Complete this Evolution of the Chicken Student Worksheet (see link to the interactive site at the top of the worksheet). Mr. Jensen will have a paper copy of the assignment. Write on the paper copy and turn it in to him by the end of the period.
Then, read pages 460 to 473 and answer all questions on page 464 and 473. Upload your answers to Canvas.
Horse Fossil Debrief & Assignment
Evolution; Darwin's Finches (slides 25 to 29)
Galapagos Finch and Seed Graphing Assignment
Galapagos Finch Evolution Video
Natural Selection Activity (if time)
The most intact record of
horse fossils have been
found at John Day Fossil
Bed in Oregon.
HOMEWORK: Read pages 450 to 453 and answer questions 1 through 3. Also, read pages 454 to 458 and answer questions 1 through 4. Submit to Canvas. Due Friday, May 12th.
Ratios to memorize from heterozygous crosses:
-monohybrid heterozygous x heterozygous
-dihybrid heterozygous x heterozygous
Genetics Kahoot
Genetics Practice Exam taken as if today were the test. Answer Key
If this is all easy for you, do some research on epistasis and try the problems in the link. Epistasis Definition Epistasis Problems
Mitosis vs Meiosis Differences to Know Metaphase
Practice Exam Take a picture(s) of your answers and upload to Canvas.
Mitosis Amoeba Sisters Meiosis Amoeba Sisters
Here is a mitosis resource to complete the assignment below.
Here is a meiosis resource to complete the assignment below.
White board/Playdough Picture Series:
On a white board show DNA replication then the stages of mitosis: Prophase, Metaphase, Anaphase, and Telophase.
Use play-dough to model 2 chromosomes (2 from mom and 2 from dad = 4). Color code the chromosomes from each parent and make them three different lengths to keep track.
On the white board next to the chromosomes write a Title (what phase is being shown) and a brief description of what happens at this phase of mitosis. Draw in cell membrane, nuclear envelope, centrioles, and spindle fibers.
Put your pictures into a slideshow or paste them onto a Google Doc to keep them in the correct order. Then upload your mitosis picture series to Canvas.
Do the same with meiosis. Extension time can be used for this!
Genetics Brochure/Website Reminders
Dihybrid Crosses cats & peas
Dihybrid Practice Problem Blood
Dihybrid Crosses Worksheet Due next time we meet.
Fake Blood Typing Activity Visual Blood Genetics Practice Problems
Dihybrid Crosses with blood if time.
Sex Linked (X or Y) Sex Linked Practice Problems
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Incomplete & Codominance Incomplete & Codominance Practice Problems
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Fake Blood Typing Activity (if time) Blood Genetics Practice Problems
Autosomal vs Sex Linked Inheritance
Single Gene vs Whole Chromosome Conditions
Single Gene Conditions will require a pedigree for your brochure/website.
Whole Chromosome Conditions will require a karyotype.
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Below is a list of genetic conditions that might help us get started (you are not limited to this list):
Tay Sachs Disease
Cystic Fibrosis
Sickle Cell Anemia
Red Green Color Blindness
Hemophilia
Huntington's Disease
Achondroplasia
Phenylketonuria PKU
Marfans Syndrome
Polydactyly
Werners Syndrome
Albinism
Angelmans Syndrome
Adrenoleukodystrophy ALD
Maple Syrup Urine Disease
Turners Syndrome
Down Syndrome
XXX Syndrome
XXY Syndrome
Night Blindness
Fragile X Syndrome
Cri du Chat
Methemoglobinemia
NOVA Wonders: Can We Make Life? Video
White Board Review
-Nucleic Acid Structure (include monomers and 3' vs. 5' end)
-DNA vs RNA
-Transcription
-mRNA Processing
-Translation
-DNA Replication
-DNA Fingerprinting...RFLP
-DNA History (one sentence explaining the person's contribution )
-Friedrich Miescher
-Frederick Griffith
-Oswald Avery
-Alfred Hershey and Martha Chase
-Erwin Chargaff
-Linus Pauling
-James Watson and Frances Crick
-Rosalind Franklin
-Kary Mullis
-PCR...Polymerase Chain Reaction
DNA Fingerprinting
What you should know for DNA replication:
Helicase unwinds the DNA.
Single stranded binding proteins stabilize the unwound DNA.
DNA polymerase synthesizes new DNA in the 5' to 3' direction.
The leading strand is continuous. The lagging strand is in segments.
DNA ligase repairs the gaps in the lagging strand segments.
Two semiconserved strand of DNA are created with one old and one new strand in each.
NOVA Wonders; Can We Make Life?
Transcription Above
mRNA Splicing Below
nRNPs form a spliceosome below and cut out the introns.
Alternative Splicing Below:
Discuss Transcription & mRNA processing.
Transcription
-Start Codon
-RNA Polymerase
-Stop Codon
mRNA Processing
Pre-mRNA is...
-Spliced by spliceosome formed by snRNPs
-introns cut out
-exons bonded together
Codon BIOGO mRNA Codon Chart
Homework: Online Translation and Simulation
History of DNA Research
Table Group Assignments
-Friedrich Miescher
-Frederick Griffith
-Oswald Avery
-Alfred Hershey and Martha Chase
-Erwin Chargaff
-Linus Pauling
-James Watson and Frances Crick
-Rosalind Franklin
-Frederick Sanger
Online Transcription Simulation and Questions This is a Canvas Assignment
DNA Self Guided Lecture
Construct a DNA Model Keratin Gene
History of DNA Research
Table Group Assignments
-Friedrich Miescher
-Frederick Griffith
-Oswald Avery
-Alfred Hershey and Martha Chase
-Erwin Chargaff
-Linus Pauling
-James Watson and Frances Crick
-Rosalind Franklin
-Frederick Sanger
HOMEWORK: Read pages 344 to 348 in your textbook. Answer questions 1 through 3 on page 348 and upload to Canvas.
-Create a bacterial lawn.
-Allow to sit for 10 + minutes.
-Place antibiotic substances on the plate.
Endosymbiotic Theory Slideshow
Ted Ed; How we think complex cells evolved.
Streak Plate Bacteria
Valentines day question: What factors (beyond your control) influence who you are attracted to?
Fontline (Joan Casey, CV graduate is featured)
Bacterial Gene Sharing
transformation: when bacteria take in DNA from their environment
conjugation: when bacteria build a bridge called a pilus between each other and exchange DNA
transduction: when viruses attack bacteria and use them to replicate. ..then they carry some of that bacteria's DNA to the next cell they infect
-Communication via Email
-Work in
-Be on Time
Aquaporins (below) allow water to diffuse through the cell membrane. Why are they needed?
To the right, coronavirus enters and exits the cell via endocytosis and exocyctosis.
Passive Transport = No Energy Needed
-Diffusion
-Osmosis
-Facilitated diffusion
Active Transport = Energy Needed
-Facilitated Transport
-Bulk Transport
-Endocytosis
-Exocytosis
-Phagocytosis
-Pinocytosis
On your white board, depict the following:
-What are they? -How do the do for us or other organisms?
-Molecular structure or monomers (which elements are they composed of?)
-Examples that we should know for this class.
Carbohydrates (Monosaccharides)
Carbohydrates (Disaccharides)
Carbohydrates (Polysaccharides)
Proteins (Enzymes)
Proteins (Structural)
Lipids (Saturated)
Lipids (Unsaturated)
Lipids (Cis vs Trans)
Tuesday,
pH Lab
Extension: Biogeochemical Problem Table Assignment; Facts and Reference Document Due Today (5 points in Canvas).
-Coral Bleaching = Table 8
-Acid Rain = Table 3
-Commercial Livestock Farming = Table 6
-Oil Fracking = Table
-Ocean Acidification = Table 2
-Drought and Desertification = Table 1
-Increasing Wildfires = Table 5
-Microplastic Cycling = Table 4
- Eutrophication = Table
-Permafrost Melt = Table 7
Niche Partitioning is a way that organisms can divide up a habitat without competing with each other for resources. How is the habitat of the shoreline divided up between the different bird species. How birds and bats divide the same resources?
Michael Tessmer Images