Science and Society

Did you know that in your body you have about 27 trillion cells at any one point in time? And in every single one of those cells, there is so much activity, that it could be compared to rush hour traffic going at lightning speed in a very big city, or the number of phone messages traveling through optic cables all over America at any one point in time. Cells are also very organized in their activity, with different parts doing very specific things. The following project will help you get to know the different parts of the cell and what each part does.

q Next to the label for each cell part, include a neatly written or typed definition of the function of that cell part and a visual analogy (drawn or a magazine picture cut out) which represents the function of that cell part.

For example: The Nucleus serves as the "brain" or "manager" of the cell, thus, a visual analogy could be a picture of a brain, manager or leader.

Make your drawings neat, organized, and professional!! You will be graded on this.

Part II: Write and type up two short paragraphs which describe the following:

Directions:

After viewing the film Mr. Smith Goes to Washington and participating in class discussions, complete the following questions:

1) Summarize the story of Jefferson Smith.

2) How does the reflection of the media in the film compare to your view of the media in 2001

3) What did Jefferson Smith mean when he said, “always see life around you as if you come out of a tunnel.” In your opinion, what is the benefit of viewing life in this manner?

4) Mr. Smith spoke about striving toward the “American ideals” of liberty, justice and freedom. How do these ideals apply to your life today? Explain

5) Jefferson Smith’s father taught him the importance of fighting for “lost causes.” What is the value of being a “champion of a lost cause?” List three so-called lost causes in 2001 and describe how champion leadership could impact each cause.

6) Using the attached hand-out: How a Bill Becomes Law, create a visual that reflects the process for passing a law in the United States.

DNA, CHROMOSOMES, GENES &

CELL DIVISION NOTES

Directions: using the Modern Biology textbook chapter 8, take notes on the following:

DNA -

Chromosomes -

Genes –

Number of Chromosomes per Species –

Human Cat Onion Chicken Guinea Pig

Body Cells vs. Sex Cells

Cell Division

Mitosis =

Meiosis =

Asexual Reproduction vs. Sexual Reproduction

Sex Chromosomes

Male Female

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DNA

Location

Structure:

Backbone:

Steps:

Chargaff's Rule:

Replication:

Step 1 Step 2 Step 3

When Something Goes Wrong

Karyotyping Genetic Disorders

For each of the karyotypes (pictograms of human chromosomes) given in class, use the Field Guide to Human Chromosomes and the Medical Guide to Genetic Disorders supplement to decode the sex of the babies and their genetic disorder.

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1. In garden peas, round seed coats (R) is dominant over wrinkled seed coats (r). What will the results be of a cross between a homozygous dominant male and a recessive female?

2. In peas, yellow color (Y) is dominant to green (y). What will be the results of a cross-pollination of a heterozygous female and a heterozygous male?

3. In humans, straight toes (S) is dominant over curled toes (s). What would be the result of a cross between a recessive male and a heterozygous female?

4. In dogs, erect ears (E) is dominant over droopy ears (e). What are the results if two heterozygous dogs have a litter of puppies?

5. The ability to roll the tongue (R) is determined by a dominant gene while the recessive gene results in the inability to roll the tongue (r). A man and his wife can both roll their tongues and are surprised to find that their son cannot. Explain this by showing the genotypes of all three persons. (Note: you do not need to do a Punnett Square for this problem)

6. In humans, wavy hair (cs) results by the incomplete dominance of curly (c) hair over straight (s) hair. What are the possible results if a curly-haired man and a wavy-haired woman have children?

7. In iris, purple (p) is incompletely dominant over white (w). What would be the results of a cross if both parents were pale lavender (heterozygous – pw)?

8. In crocus flowers, white (W) and purple (P) colors are co-dominant. What are the possible results from the cross pollination of a striped crocus with a white crocus?

9. In cattle, red (r)is incompletely dominant over white (w) hides. Roan is the name of the color that results from incomplete dominance. What are the possible results if a white male mates with a roan female?

10. The following Punnett Squares show the results of four different crosses Gregor Mendel made with pea plants. In this case, Mendel was looking at flower color with Red (R) being dominant over white (r). For each of the results listed below, write down which cross (Punnett Square) applies.

a. He crossed a red flowered R plant with a white flowered r plant. His results were 126 red flowering plants and 122 white flowered plants. Punnett Square which applies: ____

b. He crossed a red flowered R plant with a white flowered r plant. His results were 307 red flowering plants and 0 white flowered plants. Punnett Square which applies: ____

c. He crossed a red flowered R plant with a red flowered R plant. His results were 306 red flowering plants and 110 white flowered plants. Punnett Square which applies: ___

d. He crossed a red flowered R plant with a red flowered R plant. His results were 300 red flowering plants and 0 white flowered plants. Punnett Square which applies: ____

SCRAPBOOK

“By completing this Science & Society scrapbook, I learned…”

In Search of Justice….

The Bell of Atri

Retold by James Baldwin

Gandhi

Making the Change You Wish to See in the World

Respect, Rights, Responsibility and Revolution

Sex Chromosomes

When Something Goes Wrong

Karyotyping Genetic Disorders