Which tissue type attaches to bones and is
responsible for producing body movements?
a. skeletal muscle
b. neural
c. epithelial
d. smooth muscle
e. connective
A
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Autotrophy has been observed among the ________.
A. cyanobacteria B. extreme thermophiles C. methanogens D. All of the choices are correct.
Albinism is a recessive trait controlled by a single gene. If the frequency of albinos in a population is 0.25, what is the expected frequency of heterozygotes for this trait?
a. 0.25 b. 0.50 c. 0.75 d. 0.90 e. 1.00
A mutation in the IGF2 gene in pigs results in a three-fold increase in the transcriptional activity of this gene in muscle
cells; therefore, these pigs are leaner and more muscular. Because this mutation is located in the noncoding region of the IGF2 gene, we can infer that:a. the IGF2 gene is a prokaryotic gene. b. the IGF2 gene is present only in muscle cells, but not in adipose (fat) cells. c. the mutation changes the amino acid sequence of the IGF2 protein. d. the mutation alters the regulatory region of the IGF2 gene. e. less IGF2 protein is synthesized in the muscle cells of these pig
Which of the following describes flash pasteurization?
A. heating at 63°C for 30 minutes B. heating at 72°C for 15 seconds C. heating at 72°C for 15 minutes D. heating at 134°C for one second E. passing liquid through steam at 140°C