WorksheetsDNA & RNA Review
Total questions: 47
Worksheet time: 24mins
Methionine is indicated by the nucleotide sequence_______, which is a ______.
TAC; amino acid
UAA; RNA sequence
UAG; stop codon
AUG; start codon
What happens to mRNA prior to translation?
All of the exons are removed and discarded.
The mRNA molecule is made from a protein template.
Introns are cut from the mRNA and the exons are spliced together.
The mRNA molecule is replicated.
The process of building protein molecules from the genetic information in an mRNA blueprint is called
transcription
translation
replication
polypeptide
After DNA replication, the resulting strands of the double helix are
complementary
identical
proteins
never replicated again
In eukaryotes,
transcription takes place in the cytoplasm, and translation takes place in the nucleus.
transcription takes place in the nucleus, and translation takes place in the cytoplasm.
transcription and translation both take place in the nucleus.
transcription and translation both take place in the cytoplasm.
The main enzyme involved in linking individual nucleotides into DNA molecules is
DNA protease
ribozymes
carbohydrates
DNA polymerase
During translation, the type of amino acid that is added to the growing polypeptide depends on the
codon on the mRNA and anticodon on the rRNA
anticodon on the mRNA and the anticodon on the tRNA
anticodon on the rRNA and the codon on the mRNA
codon on the mRNA and the anticodon on the tRNA
Each combination of three nitrogenous bases on messenger RNA forms a(an):
anticodon
enzyme
codon
nucleic acid
A DNA sequence is ATGCCAGTA. The new strand of DNA that is made will have which sequence?
ATGCCAGTA
TACGGTCAT
UACGGUCAU
TACTGGCAT
If there is an ATT on the DNA side, what three nitrogen containing bases would be on the RNA side?
UAA
TAA
TTA
AAU
What is the end product of DNA replication?
a mRNA molecule
a tRNA molecule
2 semi-conservative strands of DNA
an rRNA molecule
What is made at the end of transcription?
an mRNA molecule
protein
2 semi-conservative strands of DNA
a tRNA molecule
What are the building blocks of proteins?
monosaccharides
amino acids
nucleotides
phosphates
What is different about the sugars found in DNA and RNA?
RNA has a deoxyribose sugar whereas DNA has a ribose sugar.
They do not contain sugars.
There is no difference in their sugars.
DNA has a deoxyribose sugar whereas RNA has a ribose sugar.
What is the function of tRNA?
It is what makes the ribosome.
It carries the message from DNA to the ribosome.
It transfers the amino acid to the growing protein on the ribosome.
It is in the cell membrane and controls what moves in and out.
Which definition matches what transcription is?
The process of making a protein
The process of changing DNA into a mRNA strand
The process of bringing amino acids to the ribosome
The process of making 2 semi-conservative DNA strands.
What is the proper definition of translation?
The process of making a protein by reading the mRNA strand in sequences of codons.
The process of changing DNA into RNA.
The process of making 2 semi-conservative strands of DNA
prophase, metaphase, anaphase, telophase
This is the site of protein synthesis when translation takes place.
Nucleus
Ribosome
Cell Membrane
Golgi Body
Which is NOT a part of a nucleotide?
ribosome
nitrogen base
phosphate
deoxyribose
What holds the nitrogen bases together?
covalent bonds
peptide bonds
nitrogen bonds
hydrogen bonds
What is the complementary strand to this DNA?
AAT CAG GTA CCG AAC
TTA CAG CAT GGC TTG
TTA GTC CAT GGC TTG
UUA GUC CAU GGC UUG
TTA GUC CAT CCG TTG
What is the function of mRNA?
carry DNA's instructions to the ribosome
transport amino acids to ribosome
unknown
make a message of DNA
Which process is shown here?
replication
translation
cell division
transcription
Write the complementary RNA strand.
ACC GTA TTA CGA GGG
UGG CAU CCU GCU CCC
UGG CAT CCU GCT CCC
TGG CAT AAT GCT CCC
UGG CAU AAU GCU CCC
What are the amino acids for this mRNA strand?
AAC GUG CGA UUC AGC
asparagine, cysteine, proline, serine, serine
asparagine, valine, arginine, phenylalanine, serine
asparagine, valine, arginine, leucine, serine
asparagine, alanine, arginine, proline, serine
Okazaki fragments are the fragments of DNA created in the lagging strand during replication.
True
False
In DNA replication, the primase is the enzyme that unzips the double stranded helix.
True
False
This is a picture of
mRNA
rRNA
tRNA
pRNA
Semiconservative replication means
only half of the DNA is replicated
new DNA has one original and one replicated strand
DNA changes to RNA
DNA replicates in fragments
Ligase is the enzyme that
prepares the DNA for building
unwinds the DNA
adds new nucleotides
joins Okazaki fragments together
Helicase is the enzyme that
prepares the DNA for building
unwinds the DNA
adds new nucleotides
joins Okazaki fragments together
DNA polymerase is the enzyme that
prepares the DNA for building
unwinds the DNA
adds new nucleotides
joins Okazaki fragments together
Which letter represents the replication fork?
A
B
C
D
A specific gene mutation involving changes in one or a few nucleotides is called
Point Mutation
Frameshift Mutation
Polyploidy
What is a mutation that shifts the "reading" frame of the genetic message by inserting or deleting a nucleotide called?
Frameshift Mutation
Point Mutation
Polyploidy
What did Rosalind Franklin contribute to the understanding of DNA molecules?
An image indicating the shape of a DNA molecule
An analysis of the chemical makeup of a DNA molecule
A thought that DNA carries genetic information
A theory about how DNA conveys genetic information
Which answer choice correctly identifies the parts in a DNA nucleotide?
A= phosphate group B= deoxyribose C= thymine
A= phosphate group B= ribose C= uracil
A= uracil B= deoxyribose C= thymine
A= thymine B= ribose C= uracil
DNA molecule segment is : CGCAAG
The mutated DNA segment is CGCAAC. This is an example of ___ mutation.
Substitution
Insertion
Deletion
If you have a substitution mutation that results in a "STOP" codon, this type of mutation is a ______ mutation.
missense
silent
nonsense
frameshift
