WorksheetsFrom DNA to Proteins Review
Total questions: 49
Worksheet time: 59mins
What 3 pieces make up a nucleotide?
phosphate, sugar, and base
hydrogen, sugar, and base
phosphate, hydrogen, and base
phosphate, sugar, and hydrogen
Two pieces of DNA join together to form a(n)...
X in a circle
nucleotide
double helix
covalent bond
Which phase of the cell cycle replicates a cells DNA?
Gap 1
Synthesis
Gap 2
Mitosis
Please REPLICATE the following strand: ATC GCG ATT
TAG CGC TAA
ATC GCG ATT
GCA TAT GCC
AAT GCG GAT
The main function of tRNA is to
carry a message
form the ribosomes
transfer amino acids
string together DNA and RNA
The main function of mRNA is to
carry a message
form the ribosomes
transfer amino acids
string together DNA and RNA
The main function of rRNA is to
carry a message
form the ribosomes
transfer amino acids
string together DNA and RNA
The central dogma states that information flows from:
DNA -> RNA -> Proteins
RNA -> DNA -> Proteins
Proteins -> DNA -> RNA
DNA -> Proteins -> RNA
Which phrase best describes transcription?
converts mRNA into an amino acid chain (protein)
catalyzes bonds between amino acids
produces RNA from DNA molecules
recycles tRNA molecules for reuse
Which of the following is not a difference between DNA and RNA?
DNA uses Thymine (T) and RNA uses Uracil (U)
DNA is double stranded while RNA is single stranded
DNA has a deoxyribose sugar while RNA has a ribose sugar
DNA is found in the cytoplasm while RNA is found in the nucleus
Please TRANSCRIBE the following strand: GCT TAG ACC
GCT TAG ACC
CGA ATC TGG
CGA AUG UGG
GGU CUA AGC
Where does translation happen?
vacuole
lysosome
ribosome
nucleus
What is the term for a three-nucleotide sequence that codes for an amino acid?
base
codon
amine
serine
Please TRANSLATE the following strand: CGC AGU UUA
GCG TCA AAT
arg ser stop
val thr gly
GCG UCA AAU
Figure 8.1 shows a single strand of DNA. Identify the nucleotide sequence of the other DNA strand.
GGCUTGU
AATGCAG
GGCATGA
TTACGTC
Figure 8.2 shows a single strand of DNA. Identify the nucleotide sequence of the complementary RNA strand.
ATUTUAG
CAAGACT
AUCUCAG
ATCTCAG
What type of mutation has occurred in Figure 8.4?
substitution
frameshift
lethal
insertion
What will be the result of the mutation in Figure 8.4?
it will have no effect on protein function
only one amino acid will change
nearly every amino acid int he protein will be changed
translation will not occur
Which of the following would be least likely to happen as a result of a mutation in a person's skin cells?
skin cancer
reduced functioning of the skin cell
no change in functioning of the skin cell
the person's offspring have mutated skin
Which of the following sequences of processes correctly reflects the central dogma?
protein synthesis, transcription, translation
protein synthesis, translation, transcription
transcription, translation, protein synthesis
translation, transcription, protein synthesis
The main difference between the four nucleotides that make up DNA is that they have different
sugars
uracil
bonds
bases
Which of the following is the site of DNA replication in eukaryotes?
cytoplasm
ribosome
nucleus
vacuole
In order to produce all the protein that a cell needs, transcription takes place
on a gene segment over and over again
on a gene segment only once
using double-stranded RNA
using single-stranded RNA
The central dogma states that information flows from
RNA to DNA to polysaccharides
DNA to RNA to proteins
RNA to DNA to proteins
DNA to polysaccharides to RNA
How many amino acids are coded for in the following sequence of mRNA nucleotides? Assume the reading frame begins with the first nucleotide. CGAUACAGUAGC
3
4
6
12
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
A mRNA strand consists of 123 bases. Including the stop codon, how many amino acids would this code for?
369
41
40
246
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
A codon is a triplet code found on
mRNA
tRNA
DNA
rRNA
The anticodon is a triplet code found on
DNA
rRNA
tRNA
mRNA
Where does transcription take place?
mitochondria
ribosome
nucleus
cytoplasm
Protein synthesis (Translation) is important because it __________.
Converts mRNA into a protein
Copies the genetic information in DNA
Produces RNA from DNA molecules
Recycles tRNA molecules for reuse
Where does protein synthesis (translation) take place?
in the nucleus
in the cytoplasm on ribosomes
in the chloroplasts
in the mitochondria
Mutations are
changes in DNA
changes in RNA
changes in amino acids
changes in tRNA
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTACGCAAC. This is an example of ___ mutation.
Base Substitution
Base Insertion
Base Deletion
ATTTGAGCC- Original
ATTGAGCC - Mutated
The example above is an example of a
Insertion- Frameshift
Substitution
Deletion -Frameshift
Which of the following is true about mutations?
Mutations are always harmful.
Mutations are always helpful.
Mutations can be helpful, harmful, or neutral.
Mutations always have no effect on the protein.
