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WorksheetsDNA, Replication and Protein Synthesis Review
Total questions: 15
Worksheet time: 43mins
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.
Which image correctly represents a strand of human DNA? (hint: pay attention to the base pairing!)
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
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
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.
A DNA strand undergoing replication contains the bases TACGTT. Which complementary strand does it produce?
AUCGAA
ATGCAA
ATCGAA
AUCGTT
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 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 process produces mRNA?
replication of DNA
translation of DNA
crossing over of DNA
transcription of DNA
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
How many amino acids can be represented by a single 3-base DNA sequence?
1
3
6
8
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
Which molecule brings amino acids to the ribosomes during protein synthesis?
ATP
ADP
mRNA
tRNA
