Why is mutation described as the only process that can increase genetic variation?
A. It is the only process that can produce new
alleles.
B. It is the only process that changes allele
frequency.
C. It is the only process that cannot be
influenced by artificial selection.
D. It is the only process that is not random.
E. It is the only process that can produce
deleterious results.
A
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Which of the following statements about RNA polymerase in bacteria is INCORRECT?
A. It binds the promoter region of a gene. B. It is bound to a sigma factor during initiation of transcription. C. It synthesizes RNA. D. It catalyzes the addition of nucleotides to the 5? end of a growing RNA strand. E. It dissociates from the DNA at the terminator.
Diseases such as ulcers and cardiovascular disease
A. have been shown to be, or may be due to, a bacterial infection. B. are solely due to lifestyle. C. are solely due to genetics. D. are due to new mutations in bacteria.
A diatom is considered to be kinetic plankton
Indicate whether the statement is true or false
What is the correct flow of information in gene expression?
A) DNA?RNA?protein B) RNA?DNA?protein C) Protein?RNA?DNA D) DNA?protein?RNA