Prion diseases can be acquired via all of the following EXCEPT
a) ingestion.
b) inhalation.
c) contaminated surgical instruments.
d) transplanted nerve tissue.
Ans: b) inhalation.
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The "one-gene/one-enzyme" hypothesis was proposed by
A. Watson and Crick. B. Griffith. C. Garrod. D. Franklin. E. Beadle and Tatum.
A series of enzymatic steps that fixes carbon dioxide into carbohydrate is called the ________.
A. Pentose phosphate pathway B. Entner-Doudoroff pathway C. Calvin-Benson cycle D. Embden-Meyerhoff pathway
What is the name of a molecule with the following structure: sphingosine + a fatty acid linked to sphingosine through the sphingosine amino group?
a) sphingomyelin b) a ceramide c) a cerebroside d) a ganglioside
In people, a dimpled chin is an autosomal dominant trait. Many famous celebrities, such as John Travolta and Michael and Kirk Douglas, have this condition
Assume that the wrestler and actor Hulk Hogan is homozygous for the dimpled chin, and he married a woman with a round chin. They had two children, Brooke and Nick. What is the probability that their children will show the trait? A) 75% B) 25% C) 50% D) 0% E) 100%