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
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The diagram below shows a small portion of the amino acid sequence in a hemoglobin
protein molecule...
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