The diagram below shows a small portion of the amino acid sequence in a hemoglobin protein molecule. Hemoglobin is the protein found in red blood cells. The difference in
amino acid sequence in the circled
portion of the diagram below causes a
change in the shape of red blood cells.
A probable cause of this difference in
the hemoglobin molecule is
A. the inability to produce a specific enzyme, causing an accumulation of fat.
B. the substitution of one kind of nucleotide for another in a DNA molecule.
C. a recessive allele located on an X-chromosome.
D. an abnormal metabolism of phenylalanine.
LA
The
Directions: Complete all of the following for the question above.
1) GIST: (In one sentence, explain what the question is about)
(2 points)