In simple inheritance,
A) phenotypic characteristics are determined by a single pair of alleles.
B) phenotypic characteristics are determined by multiple alleles.
C) phenotypic characteristics are determined by the action of two genes.
D) phenotypic characteristics are controlled by regulator genes on a chromosome other than the one that has the structural genes.
E) phenotypic characteristics are determined by the genes on the Y chromosome.
A) phenotypic characteristics are determined by a single pair of alleles.
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Which of the following is a movement disorder exhibiting classic spastic paralysis?
A. TBI B. Huntington's disease C. Cerebral palsy D. CVA
Mitochondria
A. have inner folds called cristae. B. are the cell's power plants. C. have inner and outer membranes. D. contains DNA. E. All of the choices are correct.
Intestinal muscle is
A. striated and involuntary. B. smooth and involuntary. C. striated and voluntary.
Which glands secrete their product by way of a duct directly onto an epithelial surface?
a) exocrine b) endocrine c) paracrine