Where is the visual cortex of the brain found?
A. frontal lobe of the cerebrum
B. the occipital lobe
C. the parietal lobe
D. the cerebellum
B
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Consider two traits for an organism, determined by two genes, each of which is governed by at least two alleles. In the case of a dihybrid individual, the gametes formed will be of either the parental type or the recombinant type. Recombinant type gametes are formed because of
a. incomplete dominance. b. independent assortment. c. heterozyogosity. d. the principle of dihybrids. e. multiple alleles.
During swallowing food, which structure moves downward to prevent food from entering the trachea?
a. larynx
b. pharynx
c. glottis
d. epiglottis
e. bronchus
A frequent cancer that is seen in AIDS patients is
A) Kaposi's sarcoma B) Melanoma C) Leukemia D) Colon cancer E) Hodgkin's lymphoma
The amino acids in a polypeptide chain are connected by:
A) covalent bonds. B) glycosidic bonds. C) peptide bonds. D) both a and c.