Question 1
The detection of nucleotides as they pass through an automated DNA sequencing machine is made by
◦ radioactivity.
◦ fluorescence.
◦ antibiotic resistance.
◦ electron microscopy.
◦ gel electrophoresis.
Question 2
The difference between normal hemoglobin and sickle-cell hemoglobin is in the
◦ heme portion of the molecules.
◦ number of chains of amino acids.
◦ substitution of a specific amino acid for another specific amino acid.
◦ addition of one amino acid to the normal hemoglobin molecule.
◦ deletion of only one amino acid from the normal hemoglobin molecule.