Download Ch 16-17 Practice Quiz

Ch.16-17 Quiz: Review of Basic Biology
1. What are the 2 pyrimidines? ____________, and the 2 purines? __________, which is a double ring
structure and which is a single ring? ___________________ What are Chargaff’s rules? ______________
2. How many H bonds are there between A and T? ______ and how many between C and G? ________
3. Which of the following is the actual statement that describes how DNA replicates?
a. semi conservative b. dispersive c. conservative
4. Put these events in the correct chronological order:
• Chargaff–base pairing (A-T, C-G)
• Meselson-Stahl –DNA Replication details
• Watson and Crick (discovered the chemical structure of DNA)
• Thomas Hunt Morgan (fruit flies, linked genes)
• Avery and colleagues : first proposed DNA as the transforming agent/hereditary agent
• Mendel (early heredity)
• Hershey-Chase show that DNA is the hereditary material
• Griffith: transformation and mice
5. When DNA replicates, it is always made in order from the __’ to the __’ end. The ___’ end elongates.
6. Name a few of the enzymes (and their functions) involved in: replication, transcription, translation …
The letters below represent a portion of a strand of DNA. Take the RIGHT side of that strand and
TRANSCRIBE that into mRNA (the single strand to the right). Then TRANSLATE that mRNA into a
polypeptide using the chart provided.
A
-
T
T
-
A
G
-
C
T
-
A
C
-
G
C
-
G
A
-
T
G
-
C
T
-
A
C
-
G
T
-
A
G
-
C
T
-
A
T
-
A
T
-
A
G
-
C
G
-
C
C
-
G
T
-
A
6. The Amino Acids are matched
with the correct codon of the mRNA
at a _________=(rRNA) and the
A.A’s are delivered by ___RNA.
7. This step of making proteins
(polypeptides) is called
________________.
8. If the 6th letter on the DNA were
deleted (mutation) how would that
affect the outcome of the protein.
List the new polypeptide here:
_____ _____ _____ _____
_____ _____
9. This type of error (above) is a type
of _______________.
10. What is wobble? _____________
______________________________
11. Compare and contrast
transcription and translation.
This is the end of the strand, (a couple letters are missing) what is one
possible DNA code that would signal the ribosome to stop? What would the
mRNA’s code look like to code for that?