A "pseudogene" is best defined as:
a. a DNA sequence which is not itself expressed, but which has a functional homologous sequence in a related species.
b. a DNA sequence that encodes a functional gene, but lacks a promoter region.
c. a DNA sequence that arose from a duplication of a functional gene, but which itself is not expressed.
d. a gene that is no longer expressed due to a point mutation.
e. a coding sequence that was mutated due to chromosomal non-disjunction during meiosis.
Ans: c. a DNA sequence that arose from a duplication of a functional gene, but which itself is not expressed.
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Fill in the blank(s) with the appropriate word(s).
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A. collagen. B. cartilage. C. smooth muscle. D. carbohydrates. E. both collagen and carbohydrates.