Which of the following diseases is not caused by a mutation in a mitochondrial gene?

A. myoclonic epilepsy
B. neurogenic muscle weakness
C. Turner syndrome
D. Leber's Inherited Optic Neuropathy (LHON)
E. cardiomyopathy


Answer: C

Biology & Microbiology

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Describe two roles that sunlight plays in the marine environment

What will be an ideal response?

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Cells called ____ are a type of vascular tissue with long, tapered, overlapping ends. They develop

thick, lignified cell walls and die at maturity, leaving a water conducting tube with pits at the tapered ends that allow for lateral water transport between cells.

a. sclerenchyma b. tracheids c. collenchyma d. parenchyma e. vessel members

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If one parent has blood type A and the other parent has blood type B, then which of the following

blood types is possible in the children? a. only AB b. A and AB c. B and AB d. A, B, AB, and O e. O only

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All vertebrates except ____ have a two-circuit circulatory system.

A. fish B. mammals C. birds D. amphibians E. reptiles

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