Which of the following genetic disorders is due to a lack of the lysosome enzyme hex A?

A. Marfan syndrome
B. cystic fibrosis
C. Tay-Sachs disease
D. Huntington disease
E. sickle-cell disease


Answer: C

Biology & Microbiology

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during chemical digestion, protein molecules called _____ hydrolyze food particles

What will be an ideal response?

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Many species are held below the environmental carrying capacity by predation.

Answer the following statement true (T) or false (F)

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Who invented the microscope?

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