Is this statement true or false? Explain your answer
"Since introns do not contain protein-coding information, they do not have to be removed precisely (meaning, a nucleotide here and there should not matter) from the primary transcript during
RNA splicing."
False. Although it is true that the sequences within the introns are mostly dispensable, the introns must still be removed precisely because an error of one or two nucleotides would shift the reading frame of the resulting mRNA molecule and change the protein it encodes.
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If you were designing a method to specifically inhibit prokaryotic transcription, but not eukaryotic transcription, interfering with which of the following would work best?
A) an intercalating agent B) recognition of the promoter region C) DNase activity D) RNA polymerase II activity E) ribosomal binding
Which of these structures is NOT derived from the neural crest?
a. bones of inner ear b. cartilage of the face c. cranial nerves d. teeth e. muscles
Before a cell divides it must ____ its genetic
information.
a. duplicate b. translate c. isolate d. protect e. distribute
The birth control pill is a mixture of synthetic ____
a. testosterone and estrogens b. progesterone and estrogens c. LH and FSH d. LH and estrogens e. progesterone and testosterone