An RNA molecule (for example, rRNA or tRNA) within a cell can fold into complex three-dimensional shapes for which reason?
a. It contains the base uracil rather than thymine.
b. It contains the sugar ribose rather than deoxyribose.
c. It is double-stranded.
d. It is more primitive than DNA.
c. It is single-stranded.
Ans: c. It is single-stranded.
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You wish to determine the cellular location of a protein but unfortunately it is not particularly antigenic (i.e., it can't develop a strong antibody response). How could you solve this problem?
A. Create a fusion protein with an epitope tag that can be visualized by incubation with fluorescently tagged antibody to the epitope. B. Create a fusion protein with an epitope tag that is fluorescent without the addition of antibodies. C. Create a fusion with green fluorescent protein (GFP). The fusion protein will fluoresce when streptavidin is added. D. Express the protein as a fusion with biotin. The addition of GFP will cause fluorescence. E. None of these methods will work.
In the process of transcription, incoming RNA nucleotides are in their triphosphates form
__________________ Indicate whether the statement is true or false.
The motivational state that terminates a meal when there is food remaining
What will be an ideal response?
T or F: lifting free weights is a form of isotonic exercise
What will be an ideal response?