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Biology Chapter 13 Test Review
30 questions
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Which of the following are found in both DNA and RNA?
ribose, phosphate groups, and adenine
deoxyribose, phosphate groups, ad guanine
phosphate groups, guanine, and cytosine
phosphate groups, guanine, and thymine
Which nucleotide indicates the nucleic acid above is RNA?
What is produced during transcription?
RNA molecules
DNA molecules
RNA polymerase
During eukaryotic transcription, the molecule that is formed is
complementary to both strands of DNA.
identical to an entire single strand of DNA.
double-stranded and inside the nucleus.
complementary to part of one strand of DNA.
There are 64 codons and 20 amino acids. Which of the following is true?
Several different codons can specify the same amino acid.
Each codon specifies a different amino acid.
Some amino acids have no link to a codon.
Each amino acid is specified by only one codon.
A promoter is a
binding site for DNA polymerase.
binding site for RNA polymerase.
start signal for replication.
stop signal for transcription.
During translation, the type of amino acid that is added to the growing polypeptide depends on the
codon the mRNA and the 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.
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.
Which of the following is the name of a type of chromosomal mutation AND a type of gene mutation?
substitution
What are some characteristics of polyploidy plants?
They tend to be weaker and smaller than diploid plants.
They tend to be bigger and stronger than diploid plants.
They tend to be weaker, but bigger than diploid plants.
They tend to be smaller, but stronger than diploid plants.
A lac repressor turns OFF the lac genes by
binding to the promoter.
DNA polymerase.
binding to the operator.
binding to the lac genes.
Gene regulation in eukaryotes
usually involves operons.
is simpler than in prokaryotes.
allows for cell specialization.
includes the action of an operator region.
What regulates the expression of most eukaryotic genes?
transcription factors
dicer enzymes
silencing complexes
determine when bacteria replicate their chromosome.
determine where the flagellum is on a bacterium.
determine when a dog's cells replicate their DNA.
determine the location of a dog's ears.
What type of RNA brings the information in the genetic code from the nucleus to other parts of the cell?
How many nucleotides are needed to specify three amino acids?
What happens during translation?
Messenger RNA is made from a DNA code.
The cell uses a messenger RNA code to make proteins.
Transfer RNA is made from a messenger RNA code.
Copies of DNA molecules are made.
Which is the correct sequence of the transfer of information in most organisms?
protein to DNA to RNA
RNA to DNA to protein
DNA to RNA to protein
RNA to protein to DNA
The genetic code is always read
3 bases at a time in the same direction.
4 bases at a time in the same direction.
3 bases at at time and the direction varies.
4 bases at a time and the direction varies.
A mutation that involves one or a few nucleotides is called
an inversion.
a point mutation.
a translocation.
Which of the following is a chromosomal mutation?
point mutation
When a chromosome undergoes a deletion mutation, information is
transferred.
In E.coli, the lac operon controls the
breakdown of lactose.
production of lactose.
breakdown of glucose.
production of glucose.
Which is involved with the regulation of eukaryotic genes?
DNA polymerase
Which of the following is part of only prokaryotic genes?
promoter sequence
enhancer sequence
The mutation in the second row chromosome is the result of a(n)
substitution.
translocation.
duplication.
The element bromine can cause a genetic change, so bromine is called a
RNA polymerase.
Dicer enzyme.
lac operon.
According to the diagram above, what is not a codon that specifies for glycine?
What would be the resulting codon in structure F if structure C were deleted?
Most mutations
have no effect on an organism.
are fatal to an organism.
are helpful to an organism.
are harmful to an organism.
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