Which of the following statements about RNA splicing is false?
(a) Conventional introns are not found in bacterial genes.
(b) For a gene to function properly, every exon must be removed from the primary transcript in the same fashion on every mRNA molecule produced from the same gene.
(c) Small RNA molecules in the nucleus perform the splicing reactions necessary for the removal of introns.
(d) Splicing occurs after the 5? cap has been added to the end of the primary transcript.
(b) The primary transcript of a gene can sometimes be spliced differently so that different exons can be stitched together to produce distinct proteins in a process called alternative splicing.
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Gravitropism is defined as
A. growth in response to the Earth's magnetic field. B. gravity's pull on certain plant organs. C. growth in response to the force of gravity. D. any response to gravity that changes cell structures. E. growth mostly away from gravity.
Which animal would you expect to have the most diverse olfactory receptors to enhance their sense of smell?
a. dog b. monkey c. human d. angelfish e. earthworm
Which of the following are agranulocytes?
A. eosinophils B. basophils C. lymphocytes D. neutrophils E. erythrocytes
Each enzyme normally has specific pH and temperature optima at which they function best.
Answer the following statement true (T) or false (F)