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WorksheetsDNA, Replication, and Protein Synthesis
Total questions: 35
Worksheet time: 18mins
The DNA base pairs are
adenine, thymine, cytosine, uracil
adenine, uracil, cytosine, guanine
uracil, thymine, cytosine, guanine
adenine, thymine, cytosine, guanine
DNA stand for
deoxyribonucleic acid
ribonucleic acid
nucleic acid
acid
Which of the following is the complementary strand to this strand of DNA? ACGTGC
ACGTGC
TGCACG
ACTGAT
CATTAG
The other side of the strand ACTTAG is called a
RNA strand
an mRNA strand
tRNA strand
complementary strand
In DNA replication, the 2 strands compare to each other in that...
there are 2 identical strands
there are 4 identical strands
there is one old strand and one new strand and they are the same
there is one old strand and one new strand and they are different
What is this an image of?
replication
mitosis
interphase
protein synthesis
DNA looks like a twisted ladder, what are the rungs of the DNA ladder made of?
phosphate groups
nitrogen bases
sugars
deoxyribose
What is the backbone or side of the DNA ladder made of?
sugar and phosphate molecules
nitrogen bases
hydrogen bonds
base pairs
What kind of bond holds base pairs together?
carbon
sulfur
sodium
hydrogen
Why does DNA replication happen?
so new cells can be made
so DNA can be spliced (put together)
so cells can die off quicker
so DNA can make RNA
In a sample of DNA it was determined that 30 % of the DNA was made up of thymine and 30% was made of adenine. How much guanine and cytosine were in this sample?
60%
30%
20%
100%
Which of the following is Chargaff's Rule?
A=T=G=C
A=T and C=G
A=G and C=T
A=C and G=T
Where is DNA found in an animal cell?
nucleus
ribosome
cytoplasm
cell wall
Which of the following enzymes are used to join nucleotides to the DNA strand?
DNA helicase
DNA polymerase
DNA primase
DNA ligase
What does this image represent?
a nitrogen base
a phosphate group
nucleotide
deoxyribose
DNA polymerase adds nucleotides to the new DNA strand and it has one other job, what is that job?
proofreads the DNA strand for errors
binds together Okazaki fragments
breaks DNA into sections
activates RNA primase
Which of the following is not a DNA nitrogen base?
thymine
uracil
adenine
cytosine
Why are hydrogen bonds essential to the structure of DNA, other than holding the molecule together?
they are strong, unbreakable bonds
hydrogen bonds are not essential to DNA
they are bonds that are easily broken
hydrogen bonds are essential because they stick like glue
WHEN does DNA replication happen?
before the cell divides
after the cell divides
during cell division
after mitosis
In the image what is the name of the molecule labeled A?
nucleotide
deoxyribose sugar
phosphate group
nitrogen base
In the image, what is the name of the molecule labeled with a B?
deoxyribose sugar
phosphate group
purine
nitrogen base
In the image, what is the name of the molecule labeled with a C?
phosphate group
nucleotide
deoxyribose sugar
nitrogen base
DNA helicase...
brings in new base pairs to the new strand
provides the energy needed for replication
unzips or unwinds DNA so replication can occur
seals the old and new DNA strands together
What are the 3 jobs or roles of DNA?
store, denature, and transmit information
store, copy, and transmit information
denature, copy, and transmit information
store, copy, and denature information
Which process occurs in the nucleus?
translation
transcription
During transcription
DNA is replicated
mRNA is made
a protein is made
tRNA is made
The base pairs in RNA molecules are
adenine, thymine, cytosine, guanine
adenine, thymine, cytosine, cytosine
adenine, uracil, cytosine, guanine
uracil, thymine, cytosine, guanine
What process is taking place in this image?
transcription
translation
replication
mRNA is being made
Proteins are made of
amino acids
nucleotides
fatty acids
starch
A codon is
a set of three base pairs attached to a tRNA molecule
the location of transcription
a protein
a set of three base pairs attached to mRNA
The type of RNA that makes up ribosome is
tRNA
mRNA
rRNA
cRNA
A set of 3 base pairs attached to a tRNA molecule are called
anticodons
codons
TRNA's
protons
Which process occurs in the ribosome?
transcription
translation
replication
What process are you seeing in the image?
transcription
translation
replication
mRNA leaves the nucleus and enters a ribosome. tRNA brings an anticodon to pair with a codon on the mRNA. A protein is made. What process is being described?
replication
translation
transcription
