Name: ______________________________________________________________________ Date: _______
DNA and Central Dogma Study Guide
5-1: DNA Structure
1. Draw and label a nucleotide.
2. What are the four bases found in DNA?
3. What are the base paring rules?
4. Describe the difference between purines and pyrimidines.
5. Identify which bases are purines and which are pyrimidines.
6. Name and describe the two type of bonds found in DNA.
7. What term is used to describe the shape of DNA? Why?
Label 8-13 by using the image to the right.
8.
9.
10.
11.
12.
13.
14. Complete the table by estimating the percentages of each based on Chargaff’s rules.
Bases
DNA Sample #1
DNA Sample #2
Adenine
Thymine
Cytosine
Guanine
30 %
17%
5-2: DNA Replication
15. Describe what semi conservative replication means. Draw an image to represent this.
16. Explain the three steps of DNA replication. Include the roles of helicase and DNA polymerase.
a.
b.
c.
17. Write the complimentary DNA bases to the right.
10-4: Transcription
18. Define Transcription and state where it takes place.
19. What are three types of RNA and what are their functions
a.
b.
c.
20. Transcribe this DNA strand: A – G – C – T – G – A – A – C – G – T – A
____________________________________________
RNA
Nucleic Acid
Sugar
Bases Used
Number of Strands
Where can it be found
in the cell.
Picture
10-4: Translation
21. What does translation make and where does it occur?
22. Explain the three steps of translation.
a.
b.
c.
23. Translate this piece of mRNA into amino acids
UAA CAA GGA GCA UCC
24. Draw and label the Central Dogma Diagram.
DNA