The small circular molecules of DNA in bacteria are known as ____
a. plasmids
b. desmids
c. primers
d. clones
e. microparticles
ANSWER: a
Biology & Microbiology
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RNA differs from DNA in that
A. RNA contains ribose. B. RNA is usually single stranded. C. RNA contains uracil. D. All of the answer choices are correct. E. Some RNA molecules can catalyze bond formation.
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Which of the following groups were first to
have an amniotic egg?
a. birds b. reptiles c. amphibians d. bony fishes e. mammals
Biology & Microbiology
What are the three mechanisms by which chromatin remodelers can move nucleosomes?
What will be an ideal response?
Biology & Microbiology
Which structure is incorrectly paired with its tissue system?
a) companion cell - ground tissue b) palisade parenchyma - ground tissue c) guard cell - dermal tissue d) tracheid - vascular tissue e) root hair - dermal tissue
Biology & Microbiology