What can we find in cells that are making large quantities of proteins?
a. numerous cilia
b. numerous ribosomes
c. numerous centrioles
d. numerous chromosomes
Answer: b. numerous ribosomes
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This stage of mitosis is characterized by the disassembly of spindle apparatus, the reestablishment of the nuclear membrane, and the decondensation of the chromosomes:
A. Prometaphase B. Telophase C. Anaphase D. Metaphase
Which codons are synonymous?
A) CAC and CAG B) CAC and CAU C) ACA and AGC D) UCC and GAC
Monosaccharides are structural units of
1.lipids. 2.proteins. 3.nucleic acids. 4.carbohydrates.
Select from the following the statements that are most likely to be valid (there may be more than one valid statement)
A. A single signal may lead to more than one response in the cell B. A single signal may lead to the the activation of more than one intracellular signaling component or cascade C. Different signals originating from the plasma membrane can be integrated by cross-talk between different signaling pathways inside the cell D. Signals can only be turned on and off by phosphorylation of tyrosine residues.