Posttranscriptional insertion or deletion of nucleotides that is absent in the DNA template is called
A) RNA splicing.
B) RNA editing.
C) RNA processing.
D) RNA capping.
E) RNA modification.
B
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Nongrowing cells continuously degrade and resynthesize cellular molecules during a process known as cellular turnover.
Answer the following statement true (T) or false (F)
A food ____ takes into account the diverse interactions between primary producers, consumers, and decomposers. It does not depict the flow of carbon through an environment as being dependent on a single primary producer, consumer, and decomposer
Fill in the blank with the appropriate word.
Which of the following statements about the auxin indole-3-acetic acid (IAA) is false? a. It is involved in polarity and tissue patterning in the embryo
b. IAA can exert different effects at different concentrations. c. IAA is made mainly in root tips and young roots. d. It causes cells to expand by increasing activity of proton pumps.
Which of the following is not one of the four main groups of biomolecules?
A) electrolytes B) nucleic acids C) carbohydrates D) proteins E) lipids