Pure-breeding individuals always have the ____________________ genotype
Fill in the blank(s) with correct word
homozygous
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Which of the following may be a reason for bacteria not having nucleosomelike structures?
A. Bacteria need to respond quickly to the environment and therefore need ready access to the genome. B. Cell division in bacteria occurs in as little as 15 minutes. C. A much larger proportion of the bacterial chromosome codes for proteins. D. Higher rates of metabolism in bacteria mean that a much larger proportion of the DNA is being transcribed or replicated at a given time. E. All of these choices are correct.
Which of the following is mismatched?
A. Hyperthermophiles - adapted to high temperatures B. Extreme halophiles - adapted to salty habitats C. Psychrophiles - adapted to very low temperatures D. Thermoplasmas - adapted to warm-blooded animal environments E. Methanogens - convert CO2 and H2 into methane
A paroxysmal cough is associated with Legionnaires' disease.
Answer the following statement true (T) or false (F)
Histamine, released during inflammation, is associated with which defense mechanism?
A. innate B. adaptive C. active D. complementary E. cell-mediated