The table below lists several well-known diseases.
Disease Cause
Sickle-cell anemia Inheritance of a recessive
mutated gene
Herpes Virus transmitted through
skin to skin contact
Huntington's disease Inheritance of a dominant
mutated gene
Down's syndrome Meiosis error resulting in
an extra 21st chromosome
Cancer Non-transmittable genetic
mutation
Measles Virus transmitted through
body fluids
Plague Bacterial infection spread
by fleas
According to the chart, which diseases result from inherited changes in DNA sequence?
A.
Sickle-cell anemia and Huntington's disease
B.
Down's syndrome and Huntington's disease
C.
Cancer and Herpes
D.
Plague and Sickle-cell anemia