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WorksheetsPAP Unit 6 Test REVIEW
Total questions: 70
Worksheet time: 35mins
What does DNA stand for?
ribonucleic acid
nucleic acid
deoxyribonucleic acid
deoxyribo
What is the name of the sugar that makes up DNA?
ribose
deoxyribose
fructose
glucose
A nitrogen base, sugar, and a phosphate group is called a ___.
nucleotide
nucleus
protein
DNA
Identify the labels
A is phosphate, B is sugar, and C is nitrogen base
A is nitrogen base, B is phosphate, and C is sugar.
A is sugar, B is phosphate, and C is nitrogen base.
A is sugar, B is nitrogen base, and C is phosphate.
What is the structural shape of the DNA molecule called?
single helix
deoxyribo helix
ribo helix
double helix
What are the four bases of DNA?
adenine, thymine, uracil, guanine
adenine, thymine, guanine, cytosine
thymine, cytosine, uracil, guanine
adenine, uracil, guanine, cytosine
How do the nitrogen bases of DNA pair up?
A-T and G-C
A-G and T-C
A-U and G-C
A-C and G-U
What type of bond holds the DNA bases together?
covalent
hydrogen
peptide
ionic
What type of bond joins molecules that make up the backbone of the DNA molecule?
covalent
hydrogen
peptide
ionic
What parts of the nucleotide make up the "backbone" of the DNA molecule?
sugars
nitrogen bases
phosphates
sugar and phosphate
What parts of the nucleotide make up the "rungs" of the DNA molecule?
sugars
nitrogen bases
phosphates
sugar and phosphates
When DNA makes a copy of itself, __ breaks hydrogen bonds between nitrogen bases, opening up the DNA molecule for transcription.
ligase
DNA polymerase
helicase
RNA polymerase
What is the process called where DNA makes a copy of itself and when does it happen?
DNA multiplication; interphase
DNA translation; S phase
DNA copying; interphase
DNA Replication/Synthesis; S phase
When DNA makes a copy of itself, ___ pairs new, free floating nucleotides to exposed nitrogen bases of the DNA template.
DNA polymerase
RNA polymerase
helicase
ligase
When DNA makes a copy of itself, ___ bonds/glues together the sugars and phosphates.
DNA polymerase
RNA polymerase
ligase
helicase
Why is DNA replicated?
so translation can happen
so each daughter cell of the cell cycle has the proper amount of DNA
so transcription can happen
so you never run out of DNA
What would be the complementary strand of DNA for:
A T T G C G T C A
UAACGCAGU
TUUCGCUGT
TAAGCGACT
TAACGCAGT
RNA is different than DNA because RNA shape is
single helix
single ladder
single spiral
double ladder
RNA is different than DNA because the RNA sugar is
ribose
glucose
fructose
deoxyribose
The base that pairs with adenine in RNA is
urosine
guanine
cytosine
uracil
In eukaryotic cells, DNA can be found
in the nucleus only
in the cytoplasm only
in the nucleus and cytoplasm
in the nucleolus
In eukaryotic cells, RNA can be found
in the nucleus only
in the nucleus and cytoplasm
in the cytoplasm only
in the lysosomes
In RNA molecules, uracil is complementary to
thymine
guanine
cytosine
adenine
Where in the cell does protein synthesis take place?
ribosome
endoplasmic reticulum
nucleus
lysosome
Creating mRNA by copying DNA instructions is called
protein synthesis
transcription
translation
RNA replication
Where does transcription take place?
cytoplasm
ribosome
nucleus
mitochondria
The use of tRNA to build a protein is called
transcription
translation
replication
DNA synthesis
What would be the mRNA strand for this DNA?
GTA CGT ATC
GAT CGA TAC
GAU CGA UAC
CUT GCU TUG
CAU GCA UAC
If the DNA is GCA, what would the mRNA be?
CGT
GCU
CGU
GCT
If the DNA is GCA, what would the tRNA be?
GCT
CGU
GCA
GCU
If the DNA is CAT, the mRNA would be __.
GTA
CUA
CTA
GUA
If the DNA is CAT, the tRNA would be __.
GUA
CAU
CUA
GTA
What molecule is needed to carry DNA instructions to the ribosome?
DNA
rRNA
tRNA
mRNA
Where does translation take place?
cytoplasm
nucleus
ribosome
mitochondria
This is a picture of __ and its function is __.
ribosome; protein synthesis
tRNA; read mRNA and bring amino acids to rRNA
mRNA; copy DNA and take it to ribosome
rRNA; bind amino acids to build a protein
This is a picture of __ and its function is to __.
ribosome; bind amino acids to build a protein
mRNA; carry DNA instructions to the rRNA
tRNA; read mRNA and bring amino acids to rRNA
ribosome; synthesize proteins
This is a picture of __ and its function is to __.
nucleus; hold DNA instructions
tRNA; read mRNA and bring amino acids to the ribosome
mRNA; carry DNA instructions to the ribosome
rRNA; protein synthesis
The ball at the top of this picture represents __.
tRNA
mRNA
amino acid
protein
What process is being represented by this picture?
transcription
replication
translation
DNA synthesis
This image is called __.
Protein Synthesis
Central Process
Central Dogma
Nuclear Protein
This term means turning ON/OFF or controlling the RATE of protein synthesis.
protein expression
gene controls
gene regulation
protein function
Temperature, light, food/water quality and toxins are examples of __ that influence gene expression.
internal factors
external factors
gene factors
expression factors
Gene expression is influenced by __.
external factors
internal factors
both
nothing
Himalayan rabbits getting black fur on extremities in cold weather is an example of __.
external factor for gene expression
internal factor for gene expression
both
neither
The difference in male/female peacock tail feathers is an example of __.
external factor of gene expression
internal factor of gene expression
both
neither
Gene regulation can make genes __.
turn on
turn off
go at different rates
all are correct
Gender and signaling molecules are examples of __ that influence gene expression.
internal factors
external factors
both
neither
Using rRNA, mRNA, and rRNA to build proteins is called __.
transcription
translation
DNA synthesis
RNA synthesis
The mRNA codon UUU codes for what amino acid?
phenylalanine
lysine
leucine
proline
A DNA triplet of CCC would result in what amino acid?
proline
lysine
glycine
arginine
The mRNA codon of UAG codes for what amino acid?
cytosine
tyrosine
leucine
stop
The DNA triplet of TAT codes for what amino acid?
isoleucine
methionine
threonine
glutamic acid
The tRNA anticodon GAU codes for what amino acid?
aspartic acid
leucine
valine
histidine
3 base letters of mRNA is called a __.
anticodon
triplet
codon
tricode
Codons represent what molecule?
DNA
mRNA
tRNA
rRNA
Anticodons represent which molecule?
DNA
mRNA
tRNA
rRNA
A ribosome is represented by which molecule?
rRNA
tRNA
mRNA
DNA
This pairs with the mRNA and brings the correct amino acid to the ribosome.
nucleus
triplet
codon
anticodon
What bond is used to connect amino acids when building a protein?
covalent
hydrogen
ionic
peptide
During translation, the growing protein chain will detach from the rRNA when
a stop codon is found on the mRNA
a stop codon is found on the tRNA
the nucleus sends a stop signal
the tRNA runs out of amino acids
The portions of DNA that actually code for proteins is called __.
chromosomes
nucleotides
introns
exons
Insertion and deletion are types of __ mutations.
point
frameshift
genetic
gametic
Mutations in the __ cells may be passed to the next generation.
somatic
gametic
gender
mitotic
Substitution mutations are examples of __ mutations.
point
frameshift
gametic
somatic
A possible result of mutations is
change in the function of the protein
no change in the function of the protein
a truncated/stopped protein
all are possible
Causes of mutations can be
physical
biological
chemical
all are possible
Factors that can cause mutations are called __.
externals
mutagens
introns
metasis
Frameshift mutations affect __, while point mutations affect __.
several triplets; several triplets
one triplet; several triplets
one triplet; one triplet
several triplets; one triplet
Proteins responsible for turning genes on and off are called __.
regulatory proteins
promoter proteins
introns
exons
Portions of DNA that do not code for protein production are called __.
mutons
introns
exons
operons
