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WorksheetsUnit 5 Protein Synthesis
Total questions: 40
Worksheet time: 20mins
What nucleotide would be added opposite from thymine?
Adenine
Thymine
Cytosine
Guanine
In both prokaryotes and eukaryotes, how many copies of the chromosomes are left after replication?
1
2
3
4
All of the following statements are true of a DNA molecule except that it
is made of lipids.
contains neucleotides.
stores genetic information.
duplicates itself.
Which of the following best defines a gene?
A diploid cell containing two sets of chromosomes
A unit made up of chromosomes that control for a specific trait
A segment of DNA that codes for a particular protein
All of these.
What is replication?
The separation of two homologous chromosomes
The duplication of DNA before cell division
The synthesis of all cell organelles during S phase
None of the other answer choices
What phase in the process of DNA replication results in two copies of DNA?
G phase
M phase
P phase
S phase
Which statement best describes the functions of DNA?
DNA serves as a long-term source of energy.
DNA stores, copies, and transmits information.
DNA provides structural support inside the cell.
None of these
Which of the following shows what happens during transcription?
DNA to mRNA
DNA to protein
mRNA to protein
mRNA to tRNA
Which of the following shows what happens during translation?
DNA to mRNA
DNA to protein
mRNA to protein
mRNA to tRNA
The process in which the genetic code in RNA is converted into a polypeptide chain (protein) is called
transcription.
replication.
translation.
transfer.
What is the role of tRNA in protein synthesis?
To carry a copy of the genetic instructions from the nucleus
To carry amino acids to ribosomes to build the polypeptide
To bind to DNA and separate the DNA strands
All of the other answer choices
Each of the following is true of RNA except
RNA contains deoxyribose.
RNA contains a phosphate group.
RNA is single-stranded.
RNA contains uracil.
One type of RNA forms an important part of both subunits of a ribosome, where proteins are assembled. This type of RNA is called
messanger RNA
peptidal RNA
ribosomal RNA
transfer RNA
In mRNA, a three-base group that corresponds to a single amino acid is called
an allele.
a codon.
an exon.
an intron.
What carries the three unpaired bases that are collectively called the anticodon?
mRNA
pRNA
rRNA
tRNA
What signals the polypeptide chain to stop adding amino acids?
DNA polymerase
Mutations
Stop codons on mRNA
Stop codons in tRNA
Where does translation of protein synthesis occur in the cell?
Nucleus
Cytoplasm
Ribosome
Endoplasmic Reticulum
Where does transcription occur in the cell?
Nucleus
Cytoplasm
Ribosome
Gogli Body
Each organism has a unique combination of characteristics encoded in molecules
protein
enzyme
carbohydrates
DNA
Molecules of DNA are composed of long chains of
amino acids
fatty acids
monosaccharides
neucleotides
The base pairing rule states that the following are base pairs in DNA
adenine-thymine; uracil-cytosine
adenine-thymine; guanine-cytosine
adenine-guanine; thymine-cytosine
uracil-thymine; guanine-cytosine
During DNA replication, a complementary strand of DNA is made for each original DNA strand. Thus, if a
protion of the originial strand is CCTAGCT, then the new strand will be
TTGCATG.
AAGTATC.
CCTAGCT.
GGATCGA.
Which of the following is NOT found in DNA?
Adenine
Cytosine
Uracil
None of the above
In RNA molecules, adenine bonds to
cytosine
guanine
thymine
uracil
Each of the following is a type of RNA EXCEPT
carrier RNA.
messenger RNA.
ribosomal RNA.
transfer RNA.
Which series is arranged in order from largest to smallest in size?
chromosome, gene, nucleus, cell,
cell, nucleus, chromosome, gene
chromosome, gene, cell, nucleus
cell, gene, nucleus, chromosome
What is the blueprint of life?
RNA
DNA
proteins
lipids
Why is each individual human unique?
The nitrogen bases of DNA are arranged
alphabetically.
mRNA delivers the amino acids in a
certain order.
Codons and anti-codons join randomly.
There are thousands of genes coding for
thousand of proteins.
DNA molecules have the shape of a ______________________.
single helix
double helix
triple helix
straight line
What is the amino acid that the mRNA GCA codes for?
Alanine
Phenylalanine
Glycine
Stop
If the DNA is CGT, the mRNA is...
GCA
GCU
GCT
GCT
If the DNA is TAC, the mRNA would be...
UAC
UTC
AUG
GUT
If the mRNA is GUC, the amino acid would be
Serine
Glutamic Acid
Valine
Aspartic Acid
mRNA is made during
transcription
translation
ribosome
cellular division
Where would you find DNA?
Ribosome
rough endoplasmic reticulum
cytoplasm
Nucleus
What makes up a protein?
Amino acids
DNA
RNA
tRNA only
What does tRNA use to match to mRNA?
Codon
Anticodon
mRNA
rRNA
What brings the amino acid to the mRNA?
mRNA
rRNA
tRNA
DNA
What converts mRNA to protein?
Transcription
Translation
Cellular division
Cellular multiplication
What can NEVER leave the nucleus?
RNA
DNA
