Tuesday, February 16, 2016

DNA Model Questions (Daisha & Tyler)



1. What is DNA?
DNA is short for Deoxyribonucleic acid. DNA is a molecule that contains the instructions an organism needs to develop and to reproduce. DNA is also an double Helix.

2. What are the building blocks of DNA called? Name the three main components of these building blocks.
The 4 main components of the building blocks of DNA are Adenine (A), Cytosine (C), Guanine (G) and Thymine (T).

3. Where in the eukaryotic cell is the DNA found?
In the eukaryotic cell DNA is found in the nucleus, the mitochondria, and the chloroplasts

4. List and describe as many functions of DNA in living things that you can think of (at least three!)
The main function/ role of DNA is the storage of information.

5. List each color that is represented for the nitrogenous bases located within the center of the molecule.
Blue, Grey, Red and Green

6. Examine the nucleotides. Draw and take a picture of a nucleotide and lable the three parts.
7. What type of bonds form between the nitrogen base pairs? (Look it up if nobody in the group knows.)
A glycosidic bond forms between a nitrogen base group. 

8. What type of bonds form between the sugar- phosphate groups?
A covalent bond forms between the sugar- phosphate groups. 


Friday, February 12, 2016

DNA MODEL (London)



•DNA is ones genetic information.
• The main 3 components in the model are the sugars the phosphates and the nitrogenous bases.
• DNA is found inside the nucleus of a cell.
•Grey
Green
Blue
Red

•

•hydrogen bonds form between the nitrogenous bases and they are weak so they are able to break apart 

DNA Model Questions(your name here)

Answer the following questions and post your DNA pictures and for this blog.


1.      What is DNA?

  

2.      What are the building blocks of DNA called? Name the three main components of these building blocks.
 

  
3.      Where in a eukaryotic cell is DNA found?


 
4.      List and describe as many functions of DNA in living things that you can think of (at least three!)

5.  List each color that is represented for the nitrogenous bases located within the center of the molecule.



 6. Examine the nucleotides. Draw and take a picture of a  nucleotide and label the three parts. Use your textbook or Google images if you need help.


 7. What type of bonds form between the nitrogen base pairs? (Look it up if nobody in the group knows.)


 

 8. What type of bonds form between the sugar-phosphate groups




Math Application:

1.      If a DNA molecule were composed of 10% guanine, what percents of the molecule would be made up of cytosine, adenine, and thymine? Show your work.


Constuction of a DNA molecule- Jared Benjamin


Jared Benjamin- Crash Course Mitosis

1)  In your body, what can clone itself?
Cells.

2)  What process is used to repair cells?
Mitosis.

3)  In the video Hank gives examples, list some.
  If you get a cut, mitosis replaces. if you drink too much, it damages your liver and mitosis replaces.

4) How does a 7 pound baby turn into a 70 pound child?
Its not cells increasing in mass, its them duplicating over and over.

5) About how many times does mitosis happen in a lifetime?

10,000,000,000,000,000 times.

6) What stores DNA in a cell?

Nucleus.

7) How is the DNA organized in your cells?

DNA is organized into chromosomes.

8) What type of cells are the 46 chromosomes?

Diploid Cells.

9) What are the phases of mitosis?

 Nuclear division plus cytokinesis, and produces two identical daughter cells during prophase, prometaphase, metaphase, anaphase, and telophase.

10) What type of cells are sex cells?

Gametes.

11) Most cells spend their life in what phase?

Interphase.

12) What phase does the chromatin start to condense into chromosomes?

Prophase.

13)  When does the nuclear envelope disintegrate?


Prophase.

14) What are the jobs of the microtubules?

They are the conveyor belts of the cell. they move vesicles, organelles and more.

15) Who first observed the process of mitosis?

Walter Flemming.

16) What does mitosis mean?

Thread.

17) What is the most recent discovery of mitosis discovered by an MIT student?

chromosome alignment.

18) Which phase separates the chromosomes?

Anaphase.

19) What does the prefix "ana" mean?

Again or anew.

20) What happens in telpohase?

Chromosomes appear as chromatin, two new nuclei appear.

21) What is the division of two cells called?

Diploid.

22)What are the names of the two new cells?

Daughter cells.






Thursday, February 11, 2016

Jamilya Rich - Crash Course

Please remove this post and submit your assignment via email using jaharris@dc.seedschool.org.  Thanks 

1.) In your body, what can clone itself?
Cells
2.) Which process is used to repair cells?
Mitosis
3.) In the video, Hank gives examples of what mitosis does. What are some of those examples?

4.) How does a 7 pound baby eventually become a 70 pound child?
The cells are not increasing the mass, its only duplicating them.
5.) About how many times will mitosis happen in your lifetime?
10,000,000,000,000,000
6.) What stores DNA in the cell?
Nucleus
7.) How is the DNA organized in your cells?
DNA is organized into chromosomes
8.) What kind of cells are the 46 chromosome (pairs)?
Diploid Cells
9.) What are the phases of mitosis?

10.) What type of cells are sex cells?
Gametes
11.) Most cells spend their life in which phase?
Inter-phrase
12.) What phase does the chromatin start to condense into chromosomes?
Pro-phrase
13.) When does the nuclear envelope disintegrate? (which phase)
Pro-phrase
14.) What are the job of the microtubules?

15.) Who first observed the process of mitosis?
Walter Flamming
16.) What does mitosis mean? (Historical Greek definition)
Thread
17.) What the most recent discovery of mitosis by an MIT student? (Just one point please)

18.) Which phase separates the chromosomes?

19.) What does the prefix "ana" mean?

20.) What happens in telophase?

21.) What is the division of 2 new cells called?

22.) What are the names of the two new cells?

Tyrane DNA structure

Crash Course- Mitosis Questions

We have discussed the three jobs of the cell which are;

generate energy

making proteins and

creating more cells

Mitosis is the process by which new cells are formed from pre-existing cells in eukaryotes.  

Use the Crash Course video on Mitosis to answer the following questions.  Please answer the questions directly from the blog and highlight your final answer and skip lines if done on loose leaf.  All questions must be answered by the end of class and submitted to jaharris@dc.seedschool.org for full credit.  This assignment is one of the very first assignments of the 3rd quarter. 

1.) In your body, what can clone itself?



2.) Which process is used to repair cells?



3.) In the video, Hank gives examples of what mitosis does.  What are some of those examples?



4.) How does a 7 pound baby eventually become a 70 pound child?



5.) About how many times will mitosis happen in your lifetime?


6.) What stores DNA in the cell?


7.) How is the DNA organized in your cells?


8.) What kind of cells are the 46 chromosome (pairs)?


9.) What are the phases of mitosis?



10.) What type of cells are sex cells? 



11.) Most cells spend their life in which phase?



12.) What phase does the chromatin start to condense into chromosomes?



13.) When does the nuclear envelope disintegrate? (which phase)



14.) What are the job of the microtubules?



15.) Who first observed the process of mitosis?



16.) What does mitosis mean?  (Historical Greek definition)



17.) What the most recent discovery of mitosis by an MIT student?  (Just one point please)



18.) Which phase separates the chromosomes?



19.) What does the prefix "ana" mean?


20.) What happens in telophase?



21.) What is the division of 2 new cells called?



22.) What are the names of the two new cells?