Leader sequences contain signals that:a
prevent enzymes from degrading the newly synthesized mRNA.
b. inhibit ribosome binding until the appropriate time.
c. initiate chain termination.
d. allow the ribosomes to be properly positioned to translate the message.
e. allow tRNA molecules to successfully bind to mRNA.
D
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A genetic mutation may be passed on to offspring if the mutation occurs in what type of cell?
a. a cancerous cell b. a dividing cell within the body c. a somatic cell d. an egg or sperm cell e. any cell in the organism
ELISA tests use a fluorescent dye as a label to trace antigen-antibody reactions.
Answer the following statement true (T) or false (F)
Removal of the hydroxyl functional group would disrupt the structure of _________.
Fill in the blank(s) with the appropriate word(s)
What is the function of the operculum?
A. to store urine until excreted B. to cleanse the blood of toxins C. to regulate buoyancy D. to detect changes in water pressure E. to pump water over the gills