In the 1930s Kluyver and van Niel proposed a classification scheme based on
A. Gram reactions.
B. biochemical relationships.
C. presumed evolutionary relationships.
D. DNA sequences.
C
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In ribose, the 2'-C has an OH attached to it
Indicate whether the statement is true or false
The temperature does not go below freezing in the
A. desert. B. temperate grassland. C. tropical rainforest. D. desert or the tropical rainforest.
Scientists have created genetically modified organisms (GMOs) by isolating and then transferring the jellyfish gene for green fluorescent protein into pigs, bacteria, plants, and mice. The result was bioluminescent organisms! These experiments demonstrate that
A. genes can only be transferred to other organisms within the same species. B. genes have no difficulty crossing the species barrier. C. animal genes from one species will not function if transferred into other animals. D. jellyfish genes may be transferred into other aquatic ectotherms, but not mammals.
If a bacterium regenerates from an endospore that did not possess any of the plasmids that were contained in its original parent cell, the regenerated bacterium will probably also _____
A) lack antibiotic-resistant genes B) lack a cell wall C) lack a chromosome D) lack water in its cytoplasm