Why is DNA replication referred to as semiconservative?
What will be an ideal response?
The progeny double helices consist of one parental DNA strand and one newly synthesized strand.
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A virus consisting of a single strand of RNA, which is transcribed into complementary DNA, is a _____
A) reverse transcriptase B) protease C) retrovirus D) RNA replicase virus E) nonenveloped virus
The images above are an example of
a. mimicry. b. display behavior. c. warning coloration. d. chemical defenses. e. camouflage.
Which of the following variations on translation would be most disadvantageous for a cell?
A) translating polypeptides directly from DNA B) using fewer kinds of tRNA C) having only one stop codon D) lengthening the half-life of mRNA E) having a second codon (besides AUG) as a start codon
All sensory input arrives at the central nervous system in the same form, as ________ propagated by afferent neurons. Perception of the type and intensity of a stimulus depends on which part of the brain the impulse projects to and the firing frequency of the sensory neuron.
A. receptor potentials B. reflexes C. thresholds D. action potentials E. frequency localizations