Which of the following statements does NOT describe a function of the cell walls of bacteria?
A. They maintain cell shape.
B. They prevent horizontal gene transfer.
C. They avoid disintegration in water with low concentrations of salt.
D. They protect against other bacteria.
E. They protect against viruses.
B. They prevent horizontal gene transfer.
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What will be an ideal response?
The DNA of an organism is made up of subunits called ________.
A. histones B. amino acids C. polymerases D. mRNA E. nucleotides
How many chromosomes does a human germ cell contain during metaphase I and telophase II, respectively?
A. There are 23 chromosomes during metaphase I and 46 chromosomes during telophase II B. There are 46 chromosomes during metaphase I and 46 chromosomes during telophase II C. There are 23 chromosomes during metaphase I and 23 chromosomes during telophase II D. There are 46 chromosomes during metaphase I and 23 chromosomes during telophase II
The archaea known as halophiles
A) require temperatures above 45?C to survive. B) require salt concentrations of 9% or greater to survive. C) are members of the phylum Euryarchaeota. D) are members of the Euryarchaeota and require temperatures above 45?C. E) are members of the Euryarchaeota and require salt concentrations above 9%.