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WorksheetsUnit 9-DNA to Proteins Practice Test
Total questions: 25
Worksheet time: 13mins
Which is one of the bases found in DNA?
polymine
adenine
huanine
serine
Which best describes the structure of a DNA molecule?
A strand of DNA linked to a strand of RNA
Two strands of DNA linked together
Two strands of amino acids linked together
Two strands of RNA linked together
Which describes how mRNA is used by a cell?
It is used to replicate DNA during mitosis
It is used to transfer the code for protein synthesis
It is used to correct mutations in DNA
It is used to stop producing carbohydrates
What would be the strand of complementary DNA produced by the strand of DNA shown below?
ATG CGA
TAC GCT
ATG CGA
UAC GCU
TUC GCT
What strand of mRNA would be produced from the strand of DNA shown below?
ACT GAC
UGA CUG
ACT GAC
TGA CTG
AGU CAG
What is it called when a bacterium uses a virus to transfer its DNA to another bacterium?
transformation
conjugation
transduction
transcription
What effect will a virus in the lytic cycle have on an organism?
It will cause genetic mutations in sex cells.
It will have no effect for weeks.
It will spread bacteria in the respiratory system.
It will destroy cells in the organism.
Which is a difference between bacteria and viruses that shows that bacteria are living organisms and viruses are not?
Bacteria respond to their environment.
Bacteria contain DNA.
Bacteria are made of cells.
Bacteria use binary fission.
What process produces mRNA?
transcription
translation
replication
conjugation
How are genes and proteins related?
One gene codes for one protein.
Proteins are made of parts of genes.
Genes and proteins are both made of DNA.
Both are made from amino acids.
What is a capsid?
A protective shell around a virus
A tube that extends from a bacteria
A virus that causes a cold
A piece of bacterial DNA
What is a possible effect of an error during transcription?
The wrong amino acid chain will be produced.
The DNA will have a point mutation.
The next generations of cells will all have defects.
The organism will become transgenic.
Which describes the main purpose of RNA polymerase during transcription?
RNA polymerase is guided to the coding region.
RNA polymerase produces mRNA from DNA.
RNA polymerase pulls apart the double helix.
RNA polymerase reaches the end of the gene.
What is the role of tRNA during translation?
It links the correct amino acids together.
It provides the code for the protein.
It translates from amino acids to nucleic acids.
It breaks apart the mRNA molecules.
How is information translated during protein synthesis?
From proteins to nucleic acids
From amino acids to nucleic acids
From nucleic acids to amino acids
From proteins to amino acids
A strand of mRNA has the bases cytosine-cytosine-uracil. Which amino acid corresponds to these bases?
Ser
Leu
Phe
Pro
Which amino acid chain will be formed by the codons shown below?
GGU AGU CGG
Gly-Ser-Arg
Gly-Thr-Arg
Glu-Thr-Arg
Glu-Ser-Arg
What is a missense mutation?
A mutation that affects an entire chromosome
A mutation that causes a person to have an extra chromosome
A mutation that adds several extra bases to a gene
A mutation that causes the code for the wrong amino acid
Which type of mutation is likely to have the least effect on an organism?
A frameshift mutation
A silent mutation
A chromosomal mutation
A nondisjunction mutation
Why do mutations in genes affect traits?
Genes produce proteins that cause traits.
Genes code for carbohydrates that influence traits.
Genes affect how many chromosomes an organism has.
Genes determine what type of mutagens an organism has.
A point mutation occurs in a sex cell of an adult chimpanzee. The mutation is located on a gene responsible for the development of the eye. Which describes the most likely effect on this mutation?
The chimpanzee will develop heart problems.
The chimpanzee will develop ab abnormal eye.
The chimpanzee's offspring will have abnormal eyes.
The chimpanzee's offspring will have healthy eyes.
Which is a method of preparing DNA for forensic analysis?
Reverse transcriptase
Nuclear transfer
Gel electrophoresis
Polymerase Chain Reaction
What is nuclear transfer used for?
DNA fingerprinting
Creating clones
Reverse transcriptase
Making insulin
The results of gel electrophoresis are shown with four different strands of DNA labeled. Which strand of DNA is the shortest?
1
2
3
4
Why was using reverse transcriptase necessary for finding a way to make artificial insulin?
DNA polymerase is the molecule that builds insulin.
Scientists had to convert information from amino acids to nucleic acids.
Insulin is made of chain of nucleic acids.
Scientists already knew the base sequence for the insulin gene.
