Biology Class in June, Can be done in person, or at home, up to you!

Dear Grade 10s

You will be invited to come to TWO SESSIONS of my class and you can leave at any time (since it is optional).   The schedule will be sent to you through MS Teams.

Please note that my class will be conducted entirely outdoors RAIN OR SHINE and you should arrive to school dressed to be out in west coast weather while you attend my class.    We will do a species inventory project on school grounds.   You will be taking pictures of plants and bugs and identifying these with a species identification app.  This project does not have to be done on school grounds and can easily be done at or near your home.  It is due on June 18, through MS Teams

After this assignment gets handed in, then any in person class will involve a local, optional interpretive walk to the park (Trout Lake), again, rain or shine.

Common questions:  
May I use a computer in school library or computer lab?
All computer labs and library computers are closed.  Please use your own device to access the internet at school. If you have access to a phone or tablet, you may use this.

Do I bring my own pens, pencil crayons and paper?
You are encouraged to bring your own pen, pencil crayons or felts as we have been advised by public health that students should not share writing materials. However, we can give you paper.  We may do some sketching during class time so if you have your own sketchbook, you may bring it.

Is it mandatory to come to school? 
No it is not.   School is OPTIONAL. If you come, I would be delighted to welcome you and help you with the plant ID app, but this is not mandatory.  You can come for as much or as little biology class as you choose.  If you do not come, I will continue to support your learning on-line.

A review of Mitosis and Meiosis

Although you studied mitosis and meiosis last year, it is worth a look again to make sure you have all the steps down correctly.  This video explains how alleles are connected to the steps of mitosis and meiosis.  I also assume this is familiar from last year.

Please watch this video


Assignment 7
CREATIVELY answer the following questions on your own paper and photograph this and send it in through teams. Answer in full sentences and draw your answers.

1.  What is Chromatin?  How many strands are there in a human?
2.  How many chromatids are there in a human?
3.  What is the 2n  or diploid number?
4.  What is mitosis used for?
5.  What is meiosis used for?
6.  Define "Gamete"
7.  What is the Haploid number?
8.  What organ makes sperm, what makes egg?
9.  How many chromatids are in a sperm or egg?
10 Draw a fertilization
11.  Draw how sperm cells are made using the number 46 to represent the chromatid number.
12.  Draw and label Chromatin, Chromatid, Sister chromatids, Chromosome.  And show me a homologous chromosome
13.    Draw a mitosis with 2n= 6.  Label the stages in detail. Remember to draw Interphase and show chromatins.
14.  Draw a meiois with 2n=6.   Label the stages.
Again, draw interphase and show the chromatin.
15a. Why does crossing over happen during prophase I?
15b.  What is primary nondisjunction.  What can happen to the chromatid number?

16.  The word chromosome is very tricky it's true definition is:

1 chromosome = 2 identical sister chromatids joined together in a centromere,
What is the other definition and why can it be a very tricky word?

17.  Write the steps of meiosis and mitosis side by side.   (this is at the end of the video)

You can also take a look at this resource.  It is meiosis and mitosis from a college level text book.  This is extended reading for those who are interested in going through biology.  I think many of you can actually handle this level.


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 with screen grabs from video
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.

Some Questions on the Video - I will update as I get questions

Some of you wrote questions about this video

 Thanks for sharing questions.  I will answer a few of them below

 


MORE QUESTIONS

Can a mom and dad alleles merge with each other? (for example, Heterochromia)

     - your Mom and dad's alleles merge when you do meiosis. That is crossing over.

Why are DNA located in the nucleus?- for protection

How does a chromatid form as it is branching off the DNA strand? - chromatids wind up at the last 

        part of interphase in mitosis and meiosis. 

How much chromatids or genes does one DNA strand produce? - one DNA strand makes one

          chromatid

Is an Y Chromatid a piece of an normal chromatid? - a y chromatid is a part of a normal set of DNA in a human.

MUTATION QUESTIONS:
 Gene mutations happen when DNA REPLICATION makes a mistake in copying the chromatin.  DNA polymerase makes a mistake when your body is exposed to MUTAGENS.  a MUTAGEN is anything that causes DNA to make mistakes during replication.  For example, UV radiation, or X-rays or smoking, eating a diet heavy in preserved meats...  all of these are linked to cancer.  These are all EXTERNAL FORCES which cause mutation.   Finally, they are discovering that even some viruses can also cause mutation.  For example, the human papilloma virus can cause cervical cancer.  That is why all of you got the vaccine for HPV when you were young.


CHROMATID AND ALLELE QUESTIONS
"Why does your nucleus contain only one chromatid?"

Introduction to Genes, Alleles, Chromatids

Watch the introduction to Genetics video


ASSIGNMENT 6
Answer these questions on this worksheet 
 creatively in the form of a labeled drawing, or a rhyming poem 
 I've uploaded this worksheet for you on  MS Teams.


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.