Graded Assignment - Semester Assessment, Part 2

Complete this teacher-scored portion of the assessment and submit it to your teacher.

 

1. A student notices that a group of ivy plants growing in a cool room of a building grow at a different rate than a group of the same kind of ivy growing in a warm room in the same building. The student wants to find out why the two groups of plants grow at different rates. Explain how she could carry out an experiment using all of the steps of a scientific process.

Answer:

 

2. Describe the role of photosynthetic organisms, such as plants, in converting the energy of light to energy that can be used by all living things including the photosynthesizers themselves. Be sure to follow the flow of energy from the sun to living things.

Answer:

 

3. A pet store has two guinea pigs. One has white fur and one has black fur. The white guinea pig has two recessive alleles for fur color (bb). The black guinea pig has one dominant allele (B) and one recessive allele (b) for fur color. What will most likely be the phenotypes of the offspring in a cross between the two guinea pigs? Explain your answer.

Answer:

 

4. Explain the basic parts of a major theme in molecular biology: the pathway of DNA to RNA to proteins. Include a general idea of what occurs at each stage.

Answer:

 

Graded Assignment

Lab Report: Modeling DNA

Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.

Total score:

... of 10 points

(Score for Question 1: .

- of 2 points)

1. In your own words, describe the base-pairing rules in any DNA molecule.

Answer.

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Score for Question 2:

represents

of 4 points)

2. Draw a sketch of your completed DNA model. Label each material and the part of the DNA molecule it

Answer:

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iscore for Question 3:.

" of Z points)

3. Describe your DNA model. Which part do the straws represent? The pushpins? The paper clips and the black dots you made with the marker?

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Type your answer here. Click or tap here to enter text.

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4. Observe the two strands of your model. Are they identical, or are they complementary? Explain your answer.

Answer:

Graded Assignment

Lab Report: Modeling DNA Replication

Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.

Total score: Click or tap here to enter text. of 10 points

(Score for Question 1 Click or tap here to enter text.: of 2 points)

1. In your own words, describe DNA replication.

Answer:

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(Score for Question 2: Click or tap here to enter text. of 2 points)

2. How does your original DNA molecule compare with the replicated molecule?

Answer:

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(Score for Question 3 Click or tap here to enter text.: of 2 points)

3. Write a sentence that relates your model to processes that take place inside your own cells. Your answer should include some form of the terms mitosis, nucleus, and cell division.

Answer:

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(Score for Question 4: Click or tap here to enter text. of 2 points)

4. Describe two roles that enzymes play in DNA replication.

Answer:

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(Score for Question 5: Click or tap here to enter text. of 2 points)

5. Draw a sketch of your molecule during replication. Make sure you label the replication fork, parent strand, daughter strand, and beginning of replication.

Answer:

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