Graded Assignment

Unit Assessment, Part 2: Gene Expression

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

Total score: ____ of 15 points

(Score for Question 1: ___ of 5 points)

1. A grown tiger began its life as a single fertilized egg. Explain why a tiger looks so much different as an adult than it did as a single fertilized egg.

Answer:

Type your answer here.

(Score for Question 2: ___ of 5 points)

2. Describe how the lac operon functions, and explain how it permits E. coli to produce the enzymes needed to break down lactose when it is present in the bacterium.

Answer:

Type your answer here.

(Score for Question 3: ___ of 5 points)

3. Explain how scientists use recombinant DNA technology to produce the drug insulin. Be sure to also explain why a gene from one organism can be expressed by another organism.

Answer:

Type your answer here.

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.

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

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?

AnSwEr.

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

iscore ror cuestion a'

.. OT Z DOINTS)

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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