Almost all cases of alkaptonuria, a rare genetic disorder, arise as the result of mating between two
unaffected parents. Why?
A. It is a co-dominant disorder.
B. It is a dominant disorder.
C. It is a recessive disorder.
D. It is a disorder controlled by multiple alleles
E. It is a disorder that only affects mature adults.
C
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Coagulase-positive S. aureus is often involved in disease
Indicate whether this statement is TRUE or FALSE.
The extracellular matrix is composed mostly of
1.glycoproteins. 2.DNA. 3.RNA. 4.ribosomes. 5.lipids.
Which of the following lists of mass extinctions and eras is correct?
A. The Precambrian experienced 0, Paleozoic experienced 3, Mesozoic experienced 2, and the Cretaceous experienced 0 mass extinctions. B. The Precambrian experienced 0, Paleozoic experienced 2, Mesozoic experienced 3, and the Cretaceous experienced 0 mass extinctions. C. The Precambrian experienced 1, Paleozoic experienced 3, Mesozoic experienced 2, and the Cretaceous experienced 1 mass extinctions. D. The Precambrian experienced 2, Paleozoic experienced 2, Mesozoic experienced 3, and the Cretaceous experienced 0 mass extinctions.
Bell-shaped distributions produced by plotting results of F2 and F3 crosses are typical of which type of inheritance?
A) hemizygosity B) codominance C) alternation of generations D) incomplete dominance E) multiple-factor inheritance