Sphynx cats have a mutation in a(n)_____ of the keratin gene, which prevents necessary splicing; therefore, keratin

protein fibers do not assemble properly.



a. promoter
b. intron-exon splice site
c. exon
d. stop codon
e. enhancer


ANSWER: b

Biology & Microbiology

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If a cell has a 95% concentration of water in its cytoplasm and the environment surrounding the cell has a 90% concentration of water, water will flow

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Some animals have no body symmetry or have

__________ symmetry like a wheel. Fill in the blank(s) with the appropriate word(s).

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