Generally the proteins of thermophiles
A. resist denaturation.
B. react more efficiently with DNA.
C. are easily denatured.
D. have a particular amino acid sequence that restricts bond formation.
E. are easily denatured AND have a particular amino acid sequence that restricts bond formation.
A
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The difference between thermal death time and thermal death point in microbicidal activity is that
A. thermal death time is the shortest amount of time required to kill an organism at a 100oC, whereas thermal death temperature is the lowest temperature required to kill an organism in 10 minutes. B. thermal death time is the greatest amount of time required to kill an organism at a specific temperature, whereas thermal death temperature is the lowest temperature required to kill an organism in 10 minutes. C. thermal death time is the shortest amount of time required to kill an organism at a specific temperature, whereas thermal death temperature is the lowest temperature required to kill an organism in 10 minutes. D. thermal death time is the shortest amount of time required to kill an organism at a specific temperature, whereas thermal death temperature is the lowest temperature required to kill an organism in 30 minutes.
The total DNA in a cell is referred to as the:a
genome. b. cDNA. c. library. d. chromosomal DNA. e. Human Genome project
Which of the following statements is NOT correct about flowering plants?
Select one: a. A sperm nucleus combines with one polar nucleus to form the endosperm. b. A sperm nucleus combines with the egg nucleus to eventually form the embryo. c. A pollen grain may be carried to the stigma of the ovary by the wind. d. A pollen tube grows down the style. e. They exhibit double fertilization.
Which of the following would be a way of finishing this hypothesis about the function of the Golgi apparatus? If the Golgi apparatus is involved in packaging products for secretion, then
A. the Golgi apparatus would contain proteins. B. the Golgi apparatus must be part of the endomembrane system. C. vesicles must travel from the RER and SER to the Golgi apparatus. D. vesicles must travel from the Golgi to the cell surface. E. the Golgi apparatus must consist of 3 to 20 slightly curved sacs.