WorksheetsFinal Exam Review: DNA, DNA Replication, and PS
Total questions: 20
Worksheet time: 12mins
What must match in order for amino acids to be linked into a protein by the ribosome?
DNA codon and mRNA codon
mRNA codon and rRNA codon
DNA codon and tRNA anti-codon
mRNA codon and tRNA anti-codon
Which is an accurate description of how DNA is replicated?
The two strands of DNA are “unzipped” and each serves as a template for a complementary DNA strand.
The two strands are “unzipped” and each is used to make a new DNA strand before being put back together.
The nucleotides of both strands of DNA are taken apart and used to assemble two completely new DNA molecules.
The nucleotides of one strand of DNA are taken apart to form a new DNA molecule, then it’s replaced by free nucleotides.
What aspect of the DNA molecule encodes hereditary information concerning an organism’s traits?
the molecular mass
the sequence of base pairs
the distribution of electrical charges
the folded three-dimensional shape
For all cells where protein synthesis occurs, which base pair is found only in mRNA?
uracil : adenine
adenine : thymine
cytosine : guanine
cytosine : uracil
A DNA strand undergoing replication contains the bases TACGTT. Which complementary strand does it produce?
AUCGAA
ATGCAA
ATCGAA
AUCGTT
Which best represents the sequence of bases on mRNA?
A U C G
A T U G
A T C G
U T C G
Which image correctly represents a strand of human DNA? (hint: pay attention to the base pairing!)
An RNA codon chart is shown.
For which amino acid sequence does the RNA sequence AUAACU code?
isoleucine-threonine
isoleucine-serine
methionine-threonine
methionine-serine
How many amino acids can be represented by a single 3-base DNA sequence?
1
3
6
8
Which statement best describes the relationship that exists among proteins, DNA, and cells?
Proteins combine to produce cells, which produce DNA.
Proteins are made up of DNA, which determines the cells that are produced.
DNA is made up of proteins, which tell a cell how to function.
Cells contain DNA, which controls the production of proteins.
What is the repeating monomer of a DNA molecule?
triglyceride
dipeptide
nucleotide
phospholipid
The diagram shows a cellular process in which a double-stranded molecule of nucleic acid gives rise to a single-stranded molecule of nucleic acid.
Which BEST describes the process shown?
DNA is transcribed into RNA.
RNA is transcribed into DNA.
DNA is translated into RNA.
RNA is translated into DNA.
Which is the greatest consequence of transcription being blocked in the nucleus?
The DNA would not be copied into RNA.
The RNA would not be copied into DNA.
The mRNA would not be transferred to rRNA.
The protein would not be assembled in the cytoplasm.
The directions for making a protein
result in DNA.
are carried by DNA.
result in amino acids.
are carried by amino acids.
What determines the order of amino acids in a protein?
the tRNA anti-codons
the function of the protein
the sequence of nucleotides in the DNA
the percentage of each nucleotide in the gene
What is the complementary base of adenine in DNA?
cytosine
thymine
guanine
uracil
What are the subunits of DNA and their function?
nucleotides that store information
monosaccharides that provide quick energy for the cell
lipids that store energy and provide insulation
proteins that provide the building blocks for the structural components of organisms
Which process produces mRNA?
replication of DNA
translation of DNA
crossing over of DNA
transcription of DNA
Which molecule brings amino acids to the ribosomes during protein synthesis?
ATP
ADP
mRNA
tRNA
A DNA strand has a nucleotide sequence of TTA TGC TCC TAA for a gene segment.
What is the amino acid sequence of the complementary mRNA strand of this DNA strand?
Gly Val Val Phe
Leu Cys Ser Stop
Asn Thr Arg Ile
Phe Ser Ser Stop
