In which of the following diseases are motor

neurons destroyed?



a. polio
b. amyotrophic lateral sclerosis
c. Duchenne muscular dystrophy
d. multiple sclerosis
e. more than one of these


E

Biology & Microbiology

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The inorganic non-protein components that participate in enzyme catalysis are known as  

A.  coenzymes. B.  cofactors. C.  products. D.  substrates. E.  reactants.

Biology & Microbiology

The first part of a new polypeptide chain being produced in a eukaryotic cell has a signal peptide. Translation of this

polypeptide ____.

a. occurs on a free ribosome in the cytosol

b. begins on a free ribosome in the cytosol and is completed on the rough ER c. occurs in the Golgi apparatus d. begins on the rough ER and is completed in the Golgi apparatus e. occurs on the rough ER

Biology & Microbiology

The ____ would most likely contain blood that needs to be cleansed

a. renal vein b. renal artery c. nephron d. kidney e. bladder

Biology & Microbiology

The F2 phenotypic ratio of a monohybrid cross

involving a gene with incompletely dominant alleles is a. 1:1. b. 2:1. c. 9:3:3:1. d. 1:2:1. e. 3:1.

Biology & Microbiology