It has been determined from several human disease samples that bacteria exist that are 16S rRNA sequenced to be Gram-positive, but morphologically double-membraned like Gram-negatives, therefore requiring a new class.
Answer the following statement true (T) or false (F)
True
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Which organisms have four-chambered hearts?
a. amphibians and most reptiles b. fish c. arthropods d. birds and mammals e. earthworms
Which of the following might lead to the generation of several incorrect PCR products?
A) An annealing temperature that is too low B) An annealing temperature that is too high C) Performing 30 cycles of PCR D) Using the correct primers E) Including an extension step
Why is it important to select a test compound that does not contain protein?
A) Protein in the test compound may cause back mutations B) Protein in the test compound may inhibit the growth of Salmonella typhimurium C) Protein in the test compound may provide the Salmonella typhimurium TA 1538 with the histidine it needs to grow on His- plates
A harmless moth that resembles a poisonous wasp is an example of:
A) Batesian mimicry. B) commensalism. C) mutualism. D) Müllerian mimicry.