The commercial product Frostban consists of a genetically altered bacterium which prevents ice crystals from forming on plants, thereby reducing freezing of plants and financial distress to the farmers as a result of freezing weather. This product contains a strain of ________.
A. Thermus aquaticus
B. Pseudomonas syringae
C. Pseudomonas fluorescens
D. Saccharomyces cerevisiae
E. Escherichia coli
Answer: B
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Stem cells are _____
a. unspecialized b. specialized c. unable to divide d. always pluripotent e. only found in embryos
The cells that result from the mitotic cell cycle can be described as ________.
A. two cells, each with the same amount of genetic material but with different genetic information B. four cells, each with the same amount of genetic material but with different genetic information C. two cells, each with the same amount of genetic material and the same genetic information D. four cells, each with the same amount of genetic material and the same genetic information
Light energy arrives at Earth in little packets called ________.
A. photons B. light waves C. rays D. wavelengths
A storage container in a cell is generally called a(n)
A. vacuole. B. endoplasmic reticulum. C. pinocyte. D. nucleus.