Unit 8 DNA Teacher-Led Review

Unit 8 DNA Teacher-Led Review

Short Answer/Essay Questions

Answers should always be in-depth

That means 2+ sentences describing the details of the question.

Example

• Question: Describe the structure of DNA in detail. Be sure to include all parts of the DNA molecule.

• Weak Answer: Double helix, adenine and guanine bond together.

• Strong Answer: DNA is in the shape of a double helix. The monomer of a DNA molecule is a nucleotide that always consists of a ribose (sugar), phosphate group, and nitrogen base. The different nitrogen bases are Adenine, Thymine, Guanine, and Cytosine.

Open Ended

In the event that DNA Ligase no longer existed in DNA replication, what would happen to the DNA?

DNA Ligase

The main job of DNA Ligase is to repair or "glue" together DNA strands.

Open Ended

There is a DNA enzyme we did not learn about called Topoisomerase. Look at the image on the screen and describe the job of Topoisomerase.

Open Ended

Relate DNA Replication to our Unit #5: Cell Division. How does DNA Replication tie into Mitosis? What are the end results of DNA replication and mitosis? Use the terms: Sister chromatids, nucleus and chromosomes in your answer.

Mitosis

• DNA replication is Mitosis on an even more microscopic level.

• Both take place in the nucleus.

• DNA replication and Mitosis produce two identical sister chromatids.

• The sister chromatids make up a chromosome.