DNA and RNA
Name:
Biology 5.0
Date:
Period:
Comparing DNA and RNA
Transcription and Translation Practice
Read each term or phrase in the left-hand column of the following table. If the term or phrase applies to DNA,
place a check mark in the column labeled DNA. If it applies to RNA, place a check mark in the column labeled
RNA. If it applies to both nucleic acids, place a check mark in both columns. Place the terms in the Venn
Diagram.
Term or Phrase:
Nucleotides
Deoxyribose
Ribose
Single-stranded
Double-stranded
Nitrogen bases
Thymine
Uracil
Double Helix
Replication
Transcription
Messenger
More than one form
Found in the nucleus
Leaves the nucleus
Does not leave the nucleus
DNA
DNA
RNA
RNA
Transcription and Translation Practice:
Example:
A certain gene has the following sequence of nucleotides:
GACAAGTCCACAATC
Write the sequence of the mRNA molecule that is transcribed from this gene.
Using the amino acid charts, write the amino acid sequence of the polypeptide translated from the mRNA.
Practice:
1. Transcribe each of the following sequences from DNA to mRNA. Then translate each mRNA sequence
into amino acids:
a) A G C T C A T G C C A G
b)
T C A G A T C A A G T C
c)
C A G T C T G A A T C A
d)
T A C A G T C C A G T A C G G
2. Given the sequence A T G G C G A A T C A C G T C A C T T G A
a)
Write the sequence of nucleotides for the complementary strand of DNA.
b)
Write the mRNA sequence transcribed from the complementary strand.
c)
What is the tRNA sequence that would be used to translate this sequence?
d)
Convert the message into an amino acid sequence.