Download DNA – RNA: What`s It All About?

DNA – RNA: What’s It All About?
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Directions: Section 1 Match each term with the description below.
TRANSLATION
rRNA
TRANSCRIPTION
mRNA
tRNA
REPLICATION
Central Dogma
1. _____________________ Making an complementary RNA sequence from a DNA code
(DNA  RNA)
2.
3.
4.
5.
6.
7.
_____________________
_____________________
_____________________
_____________________
_____________________
_____________________
Making a DNA copy of a DNA molecule (DNA  DNA)
Carries the DNA code from nucleus to cytoplasm.
Adds the correct amino acid to the growing protein chain
Making proteins from an RNA message (RNA  protein)
DNA
RNA
Protein
Combines with proteins to form ribosomes
Directions: Answer the follwing questions about DNA and RNA.
8. Which of the following is NOT TRUE about DNA replication?
a. It must occur before a cell can divide.
b. Two complementary strands are duplicated.
c. The double strand unwinds and unzips before replication.
d. The new DNA molecule contains two brand new strands of DNA.
9. RNA differs from DNA in that RNA
a. Is double stranded.
b. Contains deoxyribose.
c. Does not contain the base thymine.
d. Does not contain four nitrogen bases.
10 Each of the following is a type of RNA EXCEPT.
a. Carrier RNA
b. Transfer RNA
c. Ribosomal RNA
d. Messenger RNA
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11. During transcription
a. DNA is replicated.
b. mRNA is produced.
c. Proteins are synthesized.
d. tRNA carried anticodons to the ribosome.
12. The function of rRNA is to
a. synthesize DNA.
b. synthesize mRNA.
c. form ribosomes.
d. transfer amino acids to ribosomes .
13. Translation occurs in the ________________; transcription in the _____________.
a. Cytoplasm; nucleus
b. Ribosome; nucleus
c. Nucleus; ribosome
d. Nucleus; nucleus
14. DNA Replication occurs during _________ phase in the cell cycle.
a. G1
b. G2
c. S
d. Anaphase
15. mRNA carries _______________ while tRNA carries _____________.
a. Codons; anticodons.
b. Anticodons;codons.
c. Amino acids: codons.
d. Amino acids; anticodons.
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