DNA and RNA
Name_______________________
Transcription and Translation
Post-Test
1. The process of making a single strand copy of only a portion of a DNA strand within the nucleus
is referred to as ___________ .
A) transfer
B) transcription
C) translation
D) restriction
2. Genes often contain long non-coded nucleotide segments. These segments are referred to as
_________________.
A) introns
B) codons
C) exons
D) inversions
3. Which of the following describes mRNA?
A) double-stranded, constructed in the nucleus, copies both strands of DNA
B) double-stranded, constructed in the cytoplasm, copies both strands of DNS
C) single strand, constructed in the nucleus, copies a single strand of DNA
D) single strand, constructed in the cytoplasm, changes T(thymine) to U (uracil)
4. The structure below represents a single strand of which of the following?
A) DNA
B) mRNA
C) tRNA
D) rRNA
5. Study the diagram below. Match the letter of each item to its name.
A.
B.
E.
D.
C.
_D___Newly constructed protein
_A___DNA
_E___Cell nucleus
_C___Ribosome
_B___mRNA
6. Match the correct mRNA sequence to this DNA sequence to be copied- CTGCAT.
A. GACGUA
B. AUTAUG
C. CUGCAU
D. GUCGAU
7. How many condons, or “words” are represented in the sequence above?
A. 6
B. 3
C. 4
D. 2
8. AUGGCA is code for methionine and alanine. This is referred to as ____________.
A. Mutation
B. Transcription
C. Translation
D. Transfer
9. Which organelle does messenger RNA attach to in order to build new proteins?
A. Golgi apparatus
B. Ribosome
C. Nucleus
D. Mitochondria
10. ______ serve the process of building proteins by attaching to specific amino acids in the
cytoplasm and delivering them to the protein building site.
A. tRNA
B. mRNA
C. DNA
D. rRNA
11. The tRNA anticodon for the codon mRNA UGU is _______.
A. ACA
B. TCT
C. GUG
D. TGT
12. Structure I below represents which of the following?
A) mRNA
B) amino acid
C) anticodon
D) DNA molecule
13. Structure III above represents the process of _______________.
A) transcription
B) replication
C) monoploidy
D) translation
14. When a single base pair on a strand of DNA is replaced by a different base pair, this is referred
to as a __point___ mutation.
15. When a base pair is added or deleted on the DNA strand, this is referred to as a
__frameshift___ mutation.