Hi Everyone,
Keep studying, and please email if you need clarification!
Please note that we will not get to the discussion of the Genographic Classmates in Wednesday's Science Workshop, but I will make the test a bit shorter than I otherwise might to accommodate a discussion on Thursday. However, the information in the genographic reading packet will help you to further understand the project and how it uses all of the material that we have been studying.
One thing that I want to make sure you all understand is the basics of the cell theory. There are three parts, and very simply put:
1. All living things are made of one or more cells.
2. Cells are the smallest living units, which provide organization for organisms.
3. All cells come from the division of existing cells.
Good luck!
Tuesday, February 26, 2008
Monday, February 25, 2008
Genographic Classmates
Hey All,
Great discussion in the classes today - please make sure that you understand why and how the Genographic Project traces one's father's lineage using DNA on the Y chromosome, and the mother's using mitochondrial DNA (mtDNA). To brush up on this, go to www.national geographic.com/genographic and click on "genetics overview."
We will be reviewing for Thursday's test (see the previous post) tomorrow and Wednesday. Please bring clarifying questions for your Tuesday or Wednesday science workshop.
Also for Tuesday or Wednesday, you are reading the genographic results for either, A.T., N.K., or A. M-S. (initials to protect the innocent).
For your classmate, please answer the following:
1. Whose results have you read?
2. Was this student's mother's or father's lineage tested?
3. How can you tell in question #2?
4. What happened in Africa 50,000 years ago that resulted in migration?
5. According to the results, what was the pathway that your classmate's ancestors followed?
6. Do these results seem to make sense? WHY or WHY NOT?
Remember, be descriptive and analytical - you are scientists!
Great discussion in the classes today - please make sure that you understand why and how the Genographic Project traces one's father's lineage using DNA on the Y chromosome, and the mother's using mitochondrial DNA (mtDNA). To brush up on this, go to www.national geographic.com/genographic and click on "genetics overview."
We will be reviewing for Thursday's test (see the previous post) tomorrow and Wednesday. Please bring clarifying questions for your Tuesday or Wednesday science workshop.
Also for Tuesday or Wednesday, you are reading the genographic results for either, A.T., N.K., or A. M-S. (initials to protect the innocent).
For your classmate, please answer the following:
1. Whose results have you read?
2. Was this student's mother's or father's lineage tested?
3. How can you tell in question #2?
4. What happened in Africa 50,000 years ago that resulted in migration?
5. According to the results, what was the pathway that your classmate's ancestors followed?
6. Do these results seem to make sense? WHY or WHY NOT?
Remember, be descriptive and analytical - you are scientists!
Saturday, February 23, 2008
Test This Thursday
Hi All,
I wanted to give you a reminder about what to expect on the test this coming Thursday, February 28. If some of you missed school this week, please get back up to speed ASAP. So what's on the test? The following:
1. Cell Theory
2. The basic organelles of the animal cell, as detailed in the ANIMAL CELL THEATER, and how they work together in the functioning of a cell
3. The basic differences between the organelles in plant and animal cells
4. Information on chromosomes in the nucleus of human cells (22 number pairs + the XX or XY = 23 pairs or 46 total chromosomes)
5. Dominant and recessive traits (more to come this week)
6. DNA - sugar and phosphate backbone, nucleic acid bases (adenine, thymine, cytosine, guanine)
7. The importance of the Y chromosome in males, mitchondrial DNA in females, and how mutations (markers) enable us to trace our ancestors from east Africa to where we are today.
I think that is enough. Please email me with any clarifying questions that you have about this information, or bring them to class on Monday. If you are missing notes, please check in with a classmate ASAP.
I wanted to give you a reminder about what to expect on the test this coming Thursday, February 28. If some of you missed school this week, please get back up to speed ASAP. So what's on the test? The following:
1. Cell Theory
2. The basic organelles of the animal cell, as detailed in the ANIMAL CELL THEATER, and how they work together in the functioning of a cell
3. The basic differences between the organelles in plant and animal cells
4. Information on chromosomes in the nucleus of human cells (22 number pairs + the XX or XY = 23 pairs or 46 total chromosomes)
5. Dominant and recessive traits (more to come this week)
6. DNA - sugar and phosphate backbone, nucleic acid bases (adenine, thymine, cytosine, guanine)
7. The importance of the Y chromosome in males, mitchondrial DNA in females, and how mutations (markers) enable us to trace our ancestors from east Africa to where we are today.
I think that is enough. Please email me with any clarifying questions that you have about this information, or bring them to class on Monday. If you are missing notes, please check in with a classmate ASAP.
Sunday, February 17, 2008
Going Nuclear
Hey All,
Sorry for getting this post up later than I wanted to.
This past week was a great one in class. I think that you all did a great job of engaging in the animal cell theater, and asking good questions as we worked to understand how the chromosomes work in the nuclei of human cells. If you missed either of those two classes, or Monday's Cell Theory information, make sure you get up-to-speed ASAP.
Remember:
THERE IS A TEST ON THURSDAY, FEBRUARY 28TH ON CELLS, GENETICS, AND DNA.
For homework due Wednesday, February 20:
1. Spend 20 minutes researching WHAT DNA IS.
2. Spend 10 minutes writing a summary paragraph on WHAT DNA IS.
Of course, I will be interested in the content that you discover and summarize, but I will also be interested in the sources and approaches you use to research and summarize.
Have a great couple of days off!
Sorry for getting this post up later than I wanted to.
This past week was a great one in class. I think that you all did a great job of engaging in the animal cell theater, and asking good questions as we worked to understand how the chromosomes work in the nuclei of human cells. If you missed either of those two classes, or Monday's Cell Theory information, make sure you get up-to-speed ASAP.
Remember:
THERE IS A TEST ON THURSDAY, FEBRUARY 28TH ON CELLS, GENETICS, AND DNA.
For homework due Wednesday, February 20:
1. Spend 20 minutes researching WHAT DNA IS.
2. Spend 10 minutes writing a summary paragraph on WHAT DNA IS.
Of course, I will be interested in the content that you discover and summarize, but I will also be interested in the sources and approaches you use to research and summarize.
Have a great couple of days off!
Monday, February 4, 2008
Cellular Biology
Hi All,
Time to get busy in this genographic unit! As mentioned last week, before we get back to DNA and the genetics work being done in the National Geographic Genographic Project, We need to (re)view some basic cellular biology. In class, we discussed the five kingdoms of life, noting that Monera and Protista tend to be single celled, while Fungi, Animalia, and Plantae are typically multi-cellular. In class, we reviewed the scales of organization in humans from the organismic to the cellular/organelle levels. For homework, due Tuesday 2/5 or Wednesday 2/6 (depending on when you have science workshop), do the following:
1. Finishing reading the animal cell and plant cell handout, and generate whatever questions you have about the two types of cells, their organelles, and how they work.
2. Make a venn diagram with organelles found only in animal cells in the left circle, organelles found only in plant cells in the right circle, and organelles found in both types of cells in both circles (in the overlapping area).
See you in class!
Time to get busy in this genographic unit! As mentioned last week, before we get back to DNA and the genetics work being done in the National Geographic Genographic Project, We need to (re)view some basic cellular biology. In class, we discussed the five kingdoms of life, noting that Monera and Protista tend to be single celled, while Fungi, Animalia, and Plantae are typically multi-cellular. In class, we reviewed the scales of organization in humans from the organismic to the cellular/organelle levels. For homework, due Tuesday 2/5 or Wednesday 2/6 (depending on when you have science workshop), do the following:
1. Finishing reading the animal cell and plant cell handout, and generate whatever questions you have about the two types of cells, their organelles, and how they work.
2. Make a venn diagram with organelles found only in animal cells in the left circle, organelles found only in plant cells in the right circle, and organelles found in both types of cells in both circles (in the overlapping area).
See you in class!
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