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WorksheetsDNA to Proteins
Total questions: 20
Worksheet time: 19mins
The sequence of t-RNA nucleotides is determined by
deoxyribose
cytoplasmic genes
enzymes
DNA of the nucleus
Any change in the nucleotide sequence of the DNA of a gene is called
codon
anticodon
translation
mutation
The building blocks that make up DNA and RNA are called
nucleotides
amino acids
hydrocarbons
monosaccharides
Which of the following sequences best describes the flow of information that takes place when a gene directs the synthesis of a protein?
protein --> RNA --> DNA
DNA --> mRNA --> tRNA --> protein
DNA --> amino acid --> RNA --> protein
DNA --> tRNA --> mRNA --> protein
A mRNA strand consists of 123 bases. Including the stop codon, how many amino acids would this code for?
369
41
40
246
Select the correct complementary sequence of DNA for
TAC ACG TTA AGC ACT .
ATG TGC AAT TCG TGA
TGC AAT TCG ACG UGA
UGC AAT UCG TGA
AUG TGC AAT UCG UGA
The diagram shows the DNA fingerprints from a blood sample and four different hair samples.
Based on the DNA fingerprints, which hair sample came from the same organism as the blood sample?
Hair Sample 1
Hair Sample 2
Hair Sample 3
Hair Sample 4
Which description explains the role of the tRNA in the process shown in this model?
The model delivers amino acids to the ribosome so that they can be added to the developing peptide.
The model recognizes the stop codon of a developing peptide so that no new amino acids are added.
The model signals the release of the peptide from the ribosome once all of the amino acids have been added.
The model scans the developing peptide to make sure that the sequence of the amino acids matches the mRNA.
The pentagon-shaped (5 sided) parts represent...
nitrogen base
Deoxyribose
Ribose
phosphate
What is the correct sequence of amino acids?
AUG UAC AGU UAG
Met, Tyr, Ser, Stop
Tyr, Ser, Stop Met
Met, Iso, Glu, Stop
Stop, Met, Iso, Tyr
Which of these chromosomal mutation diagrams shows a deletion mutation?
A
B
C
D
The building blocks of proteins are ...
amino acids
nucleotides
hydrocarbons
monosaccharides
What enzyme unzips and unwinds the DNA molecule?
Helicase
Polymerase
Ligase
Primase
What sugar is found in RNA?
Ribose
Deoxyribose
Maltose
Glucose
A codon is a triplet code found on
mRNA
tRNA
DNA
rRNA
The anticodon is a triplet code found on
DNA
rRNA
tRNA
mRNA
Replication occurs during the __ phase of the cell cycle.
Interphase
Mitosis
Meiosis
Cytokineses
Why must Replication occur?
in order for our new cells to function
to produce zygotes
for chromosomes to split
for the death of the cell
What is the shape of DNA?
Double helix
single strand
hexagon
5 sided
What is the end product of Replication?
two new strands of new DNA.
single strand of DNA
for strands of DNA
two strands of DNA each with 1 parent strand and new strand.
