Max's Amazing Blog of Ultimate Destiny!!!!-November 20th, 2007- 3/3

What We Did Today- We discussed the horrors of (gasp!) of genotype sets that contain more than two alleles, using notes and our Mr. Challoner also went over the penny allele assignment a little bit. That's it really. Kinda short i know. BUt today seemed kinda short. In a short kind of way. Challypoo close your eyes: While we're on the subject, how bout I saw a sight: (no disrespect!) a fat black midget, the coolest thing ever. Not that I have a fetish or anything, it's one of those things that just catch your eye. Power to midgets! With all due respect, it made my week. Well thats all.



































































































































































































































Haha. Got ya, Challypoo!



Thoughts/Opinions On Material:

People were sorta finding this whole multiple allele thing tough. Take for example, the question on page 478, #5. It asks for the Genotypes of the mommy mouse and the daddy mouse. It tells you that they had a great night, and a month later 40 baby mice popped out. 4 of those did not get snuffed by the cat(stupid pussy!). Out of these 4(generalisation) 2 had full color genotypes(D1), 1 had dilute color(what is dilute?- faded, not as colorful as full color, etc.), and one picked up the "DEADLY" homozygous allele(OOOHH!). I find that the best way to solve this is to work backwards, which is faster than dumb old Punnet and his square squares. Both parents have two alleles(for those who really don't get it yet), which are D?D? and D?D?. The order of dominance, from most dominant, to downright recessive, is Full Color(D1) > Dilute Color(D2) > Dead mouse(D3). the dead one is the key to the whole problem. He's the most recessive. To get a homozygous recessive, both parents MUST have the recessive allele. So now the 'rents genotypes are D?D3 and D?D3. The next part is easy. If one baby mouse had Full color(D1) and the other had dilute colouring(D2), then one parent has D2, the other D1. So it looks like this: D1D3 and D2D3. Easy peasy!





Above and Beyond:


Genetics for some is no walk in the park, so here's a site with games that help you understand(hopefully)- http://nature.ca/genome/04/041/041_e.cfm

also a review for that abomination that is the genetics unit test lol: http://www.quia.com/pop/13027.html

Not too shabby, I guess.

Later you hos

Luke Helland Nov. 16 (3/3) Bio 30

Today was a double block and we basically kept on going with Genetics. We finished taking notes from the booklet he gave us. (fill in the blank). We learned about Medelian Genetics and how he experimented with pea plants. We also learned about Test crosses and Punnett Squares which are an easy way to follow the inheritance of a single trait. We did alot of practice on punnett squares in the handout he gave us.

The punnent squares are pretty easy to do. I still don't really get the difference between a test cross and punnett square. You just need to remember that the capitol letter is always dominant.
ex:

P p
p Pp pp
p Pp pp


I have given it some thought and I was thinking in the future if we could decide what traits we want or don't want for our offspring. If we could identify traits in offspring and manipulate them, we could have an choice what our kids look like and what they would be like. If this were possible people would be less susseptable to desieases and viruses and it could be a sort of modern day Natural Selection.

3/3 Jessica Leussink 14/11/07

What We Did Today!!!

- Looked at the Comparison of Miosis and Mitosis worksheet, Looked at and got answers for the practise quiz (Mitosis/Meiosis Quiz), Looked at Online Meiosis Practice and Karyotyping Exersice, Reviewed Karyotyping and Nondisjunction (Starts on page 455 of your text book), Started the actual Meiosis Quiz (NOTE: Two questions were OMITED, but I think we'll be finishing them later on after we learn the material that goes with it), Recieved a case study Cell Division and Life Cycles, Were assigned the last question on the practise quiz due for tomorrow

Thoughts

The quiz wasn't too hard so if you study it'll be easy. As for the case study, I suggested you use active reading because theres a lot on that page that you may find important or not. It talks about "the reproductive life cycle of plants and how reproductive diversity contributes to the evolution of complex organisms." If you don't understand it, I'm pretty sure he's going to go over it more in depth. Theres pictures of the cycles oo plants and humans on the back side of the page and i thought they were very helpful.

In Addition...

This Karyotyping idea sounds kind of hard, but if you understand the formulas that helps alot.

Audrey Milford Wensday nov.7

What we did: First of all we marked our mitosis quiz.
Then we recived Sexual Cell Reproduction-Meiosis notes.
We went over mostof it with the over head.
You can get the notes in the folder at the front right side of the classroom.
What I thought: I thought that we went over the notes a little to fast, but he said we will go over
meisosi again and again so that is a releif.
I think that mieosis is deffintly harder then mitosis.
Above and Beyond: If you misse this class then my advise would be to really know the stages of
mitosis because meiosis has the same stages, but it happens twice.
No pressure but we have to learn this inside and out, so really ask questions.

Ceanna Mariak: Friday, November 9 (3/3)

Review:

Today we needed to practice our understanding of meiosis and mitosis. So...... Mr.C gave us the task of creating a demo showing both of the processes using props like candy, marshmallows and toothpicks. The organism we modeled had a diploid number of 4. We were to represent the nucleus at all stages, indicate the key activities in each stage and products of each division. We took the class to prepare and present, so we ended up with homework. We were to finish the questions on the back of our assignment sheet, complete the chart handout and read abnormal meiosis on page 454-456 and amniocentesis on page 458.

Thoughts:

During oogenesis I know that four "daughter cells" are produced from the primary oocyte, the first meiotic division produces two cells each with 23 chromosomes, so why does it still undergo another division when only the mature oocyte survives and the other three die as polar bodies anyway? In spermatogenesis it makes sense because all four cells survive so there are larger amounts of sperm. Maybe in oogenesis the mature oocyte needs the nutrients provided by the polar bodies.

Additional:

I wanted to see what meiosis and mitosis looked like in a real cell, I've seen enough cartoons! Also some products of meiosis and mitosis.

Meiosis:

Mitosis

Max's Crazy Useful Blog for November 2nd, 2007- 3/3



What We Did:

We finished our tricky little Reproductive Unit Final Exam in class- only like twenty minutes so I didn't completely finish the written response(curse you Mr. Challoner!). We went over the five stages of Mitosis(think IPMAT people!). We also listened to one of the longest and most convuluted jokes ever, courtesy of good old Challypoo. For those of you who slept through class and need some of the main points about Mitosis(I'm looking at you, Jordan), here you go:

1.Interphase: DNA replication; metabolic activities
2.Prophase: Membrane of nucleus dissolves; chromatin combines through centromeres to become chromosomes; spindles developed at poles of cell
3. Metaphase: Chromosomes come together at cell equator (middle; between spindle fibers at poles);
4. Anaphase: Chromosomes separate(sister chromatids) and migrate to poles(now considered a full chromosome); spindle fibers grow and elongate the cell
5. Telophase: Nuclei begin to develop at each pole; chromatin fibers of chromosomes begin to unravel; cytokinesis(actual splitting of cells) take place

Your Welcome.

Thoughts/ Opinions On Material:

Thank god for that amazing anagram (IPMAT). I don't I ever would have remembered Mitosis without it. Looking at mitosis also gives you an insight into how cancer works. Everyone knows it makes cells mutate and replicate. Oh wait! Mitosis is replication. The more scientists and doctors know about mitosis and how cancer causes it to divide faster while compelling the new cells to have no use, the closer we can get to actually effectively preventing cancer. I also wonder: if we can figure out cancer, like what makes it tick, inside and out, we can possibly use it for good? Like how labs are now "growing" organs for transplant, we could implant "controlled cancer" into a patient whos suffering from heart disease, and allow the bengign cancer to replicate new working heart cells. If we can make cancer our b***h, it would pave a new way to stopping all disease period.

Above and Beyond:

For those of you who still don't get Mitosis(I'm looking at you now, Crabby Patty!) check out this snazzy game:http://nobelprize.org/educational_games/medicine/2001/cellcycle.html . I guarantee you'll be hooked. It uses a different system for the phases but still cool. You won't beat it. That's a challenge by the way. If you dig that "Who Wants To Be A Millionaire" show, here's something that will appeal(It even gives you hints! Bonus!)http://www.syvum.com/cgi/online/tgamem.cgi/squizzes/biology/mitosis.tdf?0 . And finally, a study guide that lets you know Mitosis like the back of your hand: http://biology.about.com/od/mitosis/a/aa121704a.htm.

Later, you hos.

In today's biology class we...

• we went over yesterdays quiz and discussed the metabolic chemical reactions that take place during mitosis and the characteristics of the stages that occur during the interphase. We also talked about the differentiation between healthy cells and cancerous ones. (Cancerous cells multiply faster and cause problems because they don't perform their functions.)
• Mr. Challoner told me that I was similar to a canceous cell. He said that I am "contagious" to the other "cells" around me. When I talk, (or don't follow through with my duties) I cause other "cells" (classmates) to do the same.
• We went through the crossword puzzle and web with information about the process of mitosis and what happens in each stage.
• We did a quiz that was an overveiw of the mitosis section. It had questions about the different stages of mitosis and questions about cloning and how it is done.
• After the quiz we were asked to read pages 448-449 as an introduction to the next section on Miosis.

November 6th, 2007 Spencer Mousek 3/3 =) (p.s. Sorry for talking all the time)