What we did:
-finished Hardy-Weinberg notes on PowerPoint and sheet.
-worked more on Hardy-Weinberg calculations.
-learned and got Changes is Gene Pools (21.2) notes.
-learned about evolution and how it comes about.
-assigned worksheet, p. 730 #11b, p. 734 # 1,3,4,5, & 7.
Thoughts and Opinions:
Today's class was interesting in the fact that were using easy math to calculate what big changes in gene pools can cause. Once you get a hold of the math it comes easy with every question thrown your way. Evolution was interesting because all organisms have gone through some sort of evolution at some piont of time.
Above and Beyond:
Learning about evolution got me thinking that humans would have gone through evolution as well. I wondered what we could have looked like.... http://www.pbs.org/wgbh/evolution/humans/humankind/index.html shows a step by step introduction of how evolution of humans progressed. It says that humans first became distinguished from apes 8 million years ago!!!! Its tough to tell what we first looked like, but it must have been some kind of cross between apes and what we are now. The earliest history of our ancestors can only be traced back through fossil, making it really difficult to decipher what we actually looked like.
Friday, May 22, 2009
Wednesday, May 20, 2009
Cody Vewchar, May 19/09 Blog #4 3/3
What we did today:
1. Wake up pop quiz after may long. Due the next day
2. Complexity in proteins (notes)
3. Mutations case study
Thoughts and/or Opinions:
The thing about mutations was quite interesting and how mutations are actually changes in the genetic material of that species. Considering how much genetic material a human has it seems alot could go wrong with just a few errors that could cause some serious mutations to occur. This whole unit is really quite interesting and since I learned today that cancer is actually a form of mutation I was wondering what else is a mutation or causes mutations of genetic material.
Above and Beyond:
http://learn.genetics.utah.edu/archive/sloozeworm/mutationbg.html
This site can give you quite a bit of info on really what happens to cause DNA mutations.
Cocaine and Ecstasy Cause DNA mutations
http://www.mapinc.org/drugnews/v03/n1893/a08.html?1263
1. Wake up pop quiz after may long. Due the next day
2. Complexity in proteins (notes)
3. Mutations case study
Thoughts and/or Opinions:
The thing about mutations was quite interesting and how mutations are actually changes in the genetic material of that species. Considering how much genetic material a human has it seems alot could go wrong with just a few errors that could cause some serious mutations to occur. This whole unit is really quite interesting and since I learned today that cancer is actually a form of mutation I was wondering what else is a mutation or causes mutations of genetic material.
Above and Beyond:
http://learn.genetics.utah.edu/archive/sloozeworm/mutationbg.html
This site can give you quite a bit of info on really what happens to cause DNA mutations.
Cocaine and Ecstasy Cause DNA mutations
http://www.mapinc.org/drugnews/v03/n1893/a08.html?1263
Monday, May 11, 2009
Rachel Schneider - May 11, 2009
Blog #2 - 3/3
What We Did Today:
-Finished video "One Wrong Letter" (about the kid with Tay-Sachs disease)
-Started Molecular Genetics unit (recieved handout)
Review Questions: page 666 #3, 4, 7
Read Gene Expression (20.2) on pages 667 and 668
-Reviewed DNA activity from Friday
-Discussed DNA Transcription and Translation (recieved handout)
Thoughts and Opinions:
The issue of Tay-Sachs disease is interesting, as with a lot of the genetic disorders that occur when only one base in the DNA is wrong and then the problem is spread from one cell to all cells through meiosis. It's baffling how only one letter amongst trillions and trillions of bases would cause such a problematic effect and the results could be lethal.
Above and Beyond:
I found that the disorders like Tay-Sachs disease are called Single Gene Disorders (the name is pretty self-explanitory). According to this site, these kinds of disorders affect only 1% of the population as a whole and over 10 000 human diseases are caused by single gene defects. As rare as they are, it's amazing and unfortunate that the two families in "One Wrong Letter" both had kids that developed Tay-Sachs disease.
What We Did Today:
-Finished video "One Wrong Letter" (about the kid with Tay-Sachs disease)
-Started Molecular Genetics unit (recieved handout)
Review Questions: page 666 #3, 4, 7
Read Gene Expression (20.2) on pages 667 and 668
-Reviewed DNA activity from Friday
-Discussed DNA Transcription and Translation (recieved handout)
Thoughts and Opinions:
The issue of Tay-Sachs disease is interesting, as with a lot of the genetic disorders that occur when only one base in the DNA is wrong and then the problem is spread from one cell to all cells through meiosis. It's baffling how only one letter amongst trillions and trillions of bases would cause such a problematic effect and the results could be lethal.
Above and Beyond:
I found that the disorders like Tay-Sachs disease are called Single Gene Disorders (the name is pretty self-explanitory). According to this site, these kinds of disorders affect only 1% of the population as a whole and over 10 000 human diseases are caused by single gene defects. As rare as they are, it's amazing and unfortunate that the two families in "One Wrong Letter" both had kids that developed Tay-Sachs disease.
Wednesday, May 6, 2009
Kaitlyn Marbeiter Monday May 3 2009
Kaitlyn Marbeiter, Monday May 3 2009 Blog # 3, 3/3
What we did today:
Mendelian Genetics
1. Tips for Pedigrees
2. Sex-linked traits
3. Gene linkage and Mapping
Thoughts and Opinions:
I think the tips for pedigrees are really helpful. Makes the big trees less confusing when you look at them. The sex linked traits are very interesting, there are sooooo many different ways of getting traits, its crazyyyy.
Here is a link for a pedigree of the royal family which once you know how to read it, it is sort of cool..
http://www.ikm.jmu.edu/Buttsjl/ISAT493/Hemophilia/europeanroyalfamily.html
What we did today:
Mendelian Genetics
1. Tips for Pedigrees
2. Sex-linked traits
3. Gene linkage and Mapping
Thoughts and Opinions:
I think the tips for pedigrees are really helpful. Makes the big trees less confusing when you look at them. The sex linked traits are very interesting, there are sooooo many different ways of getting traits, its crazyyyy.
Here is a link for a pedigree of the royal family which once you know how to read it, it is sort of cool..
http://www.ikm.jmu.edu/Buttsjl/ISAT493/Hemophilia/europeanroyalfamily.html
Tuesday, May 5, 2009
Eleanor McBain- May 5- 3/3 Blog #1
In today's class, we wrote a test on Mendelian Genetics. Gregory Mendel used pea plants to determine factors of genetics. The Austrian monk defined alleles, which are an alternate form of a gene controlling a characteristic and also homozygous, heterozygous, dominant, recessive, genotype and phenotype. Also he made two laws ( which means they haven't been disproved yet), the Law of Segregation (separation) and the law of Independent Assortment. He also showed that chromosomes can have multiple alleles, incomplete dominance, co-dominace and the genotype and phenotype can be found using a punnet square. When using the multiple alleles in the punnet squares (dihybrid crosses), it can be quite confusing. It is where I had the most difficulty. My question is how could Gregory Mendel find out all of this information in the early 1800s?
Well, Mendel would grow the plants and then crossbred whatever pea plants by putting them together so that fertilization would occur and kept very good notes about all his findings.
This is a monohybrid punnet square showing the crossing of 2 true (homozygous) pods. This shows that the green colour is dominant to yellow (G= Green, g= yellow)
The green pod is homozygous dominant(GG) and the yellow pod is homozygous recessive (gg)
The next cross shows a dihybrid cross, that means it can determine 2 traits
It shows that:
9/16 will have green pods and yellow seeds (56%)
3/16 will have green pods and green seeds(19%)
3/16 will have yellow pods and yellow seeds (19%)
1/16 will have a yellow pod and green seeds.(6%)
These are the first experiments of Gregory Mendel and his pea plants.
Kaitlyn Marbeiter, Thursday Apr. 30 2009
Kaitlyn Marbeiter, April 30, 2009, Blog#2, 3/3
What we did today:
1. Reviewed Multiple Alleles WS.
2. Went over Q's on Potatoe Hand out
3. Got it? Q's 2a-c p. 607
4. Pedigree Tips
5. Beyond Mendal, Sex-linked traits
Thoughts and Opinions:
I find the pedigree tables fairly easy as long as you know the basics, and make sure you learn the legend.
I was wondering what kind of traits are sex-linked traits and found out that they can be many different ones from immune, skin, endocryne, nervous system and many more.
Here is a link with even more sex-linked traits:
http://en.wikipedia.org/wiki/Sex-linked
Woww, amazing =]
What we did today:
1. Reviewed Multiple Alleles WS.
2. Went over Q's on Potatoe Hand out
3. Got it? Q's 2a-c p. 607
4. Pedigree Tips
5. Beyond Mendal, Sex-linked traits
Thoughts and Opinions:
I find the pedigree tables fairly easy as long as you know the basics, and make sure you learn the legend.
I was wondering what kind of traits are sex-linked traits and found out that they can be many different ones from immune, skin, endocryne, nervous system and many more.
Here is a link with even more sex-linked traits:
http://en.wikipedia.org/wiki/Sex-linked
Woww, amazing =]
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