In the history of DNA, Watson and Crick and Franklin discovered the structure of DNA as a RIGHT HANDED HELIX! It is quite the story of Scientific competition and ingenuity!
Watch my video for the DEFINITION of a left handed and right handed helix. GOOUTSIDE and look for helices in nature. anything that spirals and twists Put your frog on this spiralling specimen that was from a living thing and tell me whether it is a right handed or left handed helix.
Examples of spirals can be branches that spiral, pine cones that spiral, parts of plants, snails etc. If you have a poodle dog, you can even see how its hair spirals! Upload your spiral onto the FLEX channel between 11am and 1pm and remember for full marks, you need to include your frog, and a clear pic of your spiralling specimen plus tell me correctly whether this is a right handed or left handed helix!
This DNA replication Song was made by my students in 2007. They were grade 11 students taking my bio 12 course. Their music teacher is the same as your band teacher now.
ASSIGNMENT: Answer the following questions in a creative format
1. Why does DNA replication happen? Give three reasons 2. a. Draw a nucleotide and identify the 5' end and the 3' end b. draw a DNA ladder structure and label the 5' and 3 ' end
3. Compare and contrast DNA and RNA. a. What are they made of? b. What are their nitrogen bases? c. What enzymes synthesize DNA and RNA? d. How does DNA polymerase join one nucleotide with another nucleotide?
4. What are the main steps of DNA Replication. Include details of what each enzyme does a. Helicase b. Primase c. DNA pol III d. exonuclease e. DNA pol I f. ligase
5. In what direction does DNA polymerase synthesize the new DNA strand? 6. How is the lead strand different from the lag strand? 7. What is an okazaki fragment?
Creative Formats: Choose one format Draw a cartoon in colour. Write a poem or rap that actually rhymes Sing a song
Evaluation
Cartoon /20 20 - This stands out in its effort and creativity 18-19. This is done in ink and colour and includes all the details above and the details are all correct. This is excellent
15-17. This is very good work with effort and correct details. Some details are not there but most are there and there is excellent quality of drawing and presentation.
10-14. This is a very good start and your work shows creativity. It is not in colour or ink and looks like a very nice draft
5-9. This is incomplete but a decent start.
Poem 20. Your poem truly stands out. You show exceptional talent and you include all the details 19-19. Your poem shows talent in writing, with creative and memorable images. You include all the details above and also your poem rhymes with excellent rhythm.
15-17. This is very good work with effort and correct details. Some details are not there but most are there and there is excellent quality of writing.
10-14. This is a very good start and your work shows creativity. like a very nice draft
5-9. This is incomplete but a decent start.
Song 20. your song stands out 18-19. you have a. brilliant song. which includes all the details and they are correct. 15-17. This is a very good song. Some details are left out but what talent you have! 10-14. This is a really great song. It needs to include more of the DNA content 5-9. This is a first draft.
Have a look at this introductory video on DNA. DNA is a code, an alphabet. Its alphabet has only 4 letters, and these 4 letters can create words, which make instructions for all of life.
In this lesson, you will learn the basic structure of DNA.
I would like you to answer these questions: In Microsoft Teams, I would like you to find your assignments for this DNA unit.
PART 1: DRAW DNA 5 POINTS First, draw a labeled picture of DNA that summarizes the main points of DNA. Photograph this cartoon in a clear picture and hand it in. your NAME MUST BE CLEARLY WRITTEN ON CARTOON.
The main points are:
1. DNA is made of nucleotides 2. The nucleotides are made of sugar, phosphate and a nitrogen base 3. The nucleotides join together in a ladder structure 4. The ladder structure is antiparallel.
your rubric 5 points: your cartoon is brilliant, it includes all main points and it is in colour and inked YOUR NAME IS CLEARLY WRITTEN ON THE PAPER 3-4 : your cartoon includes all main points and is complete. 1-2: your cartoon is incomplete.
Read experiments history of Avery, Hershey, Chase, Chargaff Summarize their experiments in a ONE PAGE CARTOON or a ONE PAGE POEM THAT RHYMES
10 points: cartoon is brilliant, it stands out, it summarizes the experiments in a creative format, it is inked and in colour
8-9: your cartoon is excellent and includes all the main points. inked and in colour
5-7 your cartoon is complete it may not be inked or in colour 1-4 your cartoon is incomplete
POEM. 10 points: your poem is brilliant and it rhymes and it includes all key points. it stands out 8-9: your poem is really excellent and it rhymes and includes all key points. 6-7 - your poem doesn't rhyme but it includes all key points. 1-4 your work is incomplete.
This classroom is a positive space for LGTBQIA2+ and identities on this spectrum are respected and included. Today we used universal indicator, a known acid and a known base to create as many pHs as possible.
Hand in your rainbow today on TEAMS
We also did some practice of writing Lewis Diagram
Flowers are the reproductive organs of angiosperm plants. They contain both male and female parts. Flowering plants are amazing because they were fairly late to appear in Earth's evolutionary history. The dinosaurs evolved before flowers did! Flowers co-evolved with insects.
In this assignment, I would like you to find some flower buds, particularly the buds of Magnolia Tree, the first flowering plant in evolutionary history to use an insect pollinator. Magnolia Stellata is one type of plant and Magnolia Grandiflora is another kind. There are Magnolias all over Vancouver.
Here is your scavenger hunt and it is a challenge! I want you to find a flower BEFORE it flowers! Take a look. You will find a LIVING FOSSIL called a Magnolia Stellata or a Magnolia Grandiflora. This beauty makes gigantic flowers on magnolia trees. You will need to find its bud and take a pic of frog on a bud and also the tree itself as well as where you found that tree. Upload these pics once on our Wednesday Flex channel and also hand it in as a TEAMS assignment! Remember to put your little frog on that bud!
Magnolia Grandiflora buds on a magnolia tree
FYI this is a challenge because these trees are hard to recognize before they flower. But when they do flower, they look like this:
Today we practice drawing Bohr Diagrams. You should work through this Study guide on the same topic as well as the worksheet handed out in class. Finish these two worksheets and upload them on TEAMS for 5 marks.
