gene
What will be an ideal response?
the physical and functional unit of heredity; a sequence of DNA that codes for a specific peptide or RNA molecule
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Atoms in which the number of electrons does not equal the number of protons are known as:
A. valences. B. ions. C. isotopes. D. isomers.
Some marine species of cyanobacteria
A. do not have flagella and are, therefore, nonmotile. B. do not have flagella but are, nonetheless, motile by some unknown mechanism. C. do not have flagella but are motile by means of pseudopods. D. have flagella and are, therefore, motile.
The condition sickle cell anemia is due to
A) the insertion of an amino acid. B) the deletion of an amino acid. C) substitution of an amino acid. D) failure to synthesize a hemoglobin molecule. E) deletion of the ?-chain hemoglobin gene.
Which amino acid is MOST likely to be found in the core of a protein?
A) methionine B) glutamic acid C) threonine D) asparagine E) serine