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What effect has breast cancer research had on society?
People who have gene mutations have more treatment options.
People now face an increased risk of breast cancer.
The complete history of breast cancer is now known.
Breast cancer research has no impact outside of a lab.
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People who have gene mutations have more treatment options.
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Which is a function of nucleic acids?
regulate cell processes
provide structure
transmit genetic information
fight disease
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transmit genetic information
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Who discovered the monomers of nucleic acids?
Phoebus Levene
James Watson, Francis Crick, and Rosalind Franklin
Friedrich Miescher
Gerardus Johannes Mulder and Jöns Jacob Berxelius
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Phoebus Levene
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How many amino acids cannot be made by the body, so they must be obtained in the diet?
2
5
10
20
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10
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Which three components are common to all amino acids?
an amino group, a carboxyl group, and an R group
an amino group, a phosphate group, and an R group
a five-carbon sugar, a phosphate group, and a nitrogenous base
a five-carbon sugar, an amino group, and a nitrogenous base
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an amino group, a carboxyl group, and an R group
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How many amino acids are found in living organisms?
2
5
10
20
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20
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Which statement is true about BRCA1 and BRCA2 genes?
These genes were discovered in 1953.
Cancerous tumors often form on these genes.
People can be tested for mutations on these genes.
Mutations of these genes lead to diabetes.
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People can be tested for mutations on these genes.
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DNA and RNA share a number of similarities, but they also differ in certain aspects of their structure.
Which nitrogenous base is found in RNA but is not found in DNA?
uracil
adenine
thymine
cytosine
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uracil
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Which pair of statements best describes an essential amino acid?
It is an amino acid that contains peptide bonds. An example is proline.
It is an amino acid that contains nitrogen. An example is aspartic acid.
It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
It is an amino acid that can be produced by the body. Vitamin supplements maintain healthy levels.
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It is an amino acid that cannot be made by the body. It must be obtained from eating certain foods.
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Which element is found in nucleic acids but not in proteins?
carbon
hydrogen
nitrogen
phosphorus
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phosphorus
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