An operon is a useful genetic element, because it
A) encourages the binding of RNA polymerase.
B) allows coordinated expression of multiple related genes in prokaryotes.
C) translates DNA sequence into amino acid sequence.
D) encourages the binding of ribosomes in the correct location.
Answer: B
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Which of the following is a common energy storage polymer in microorganisms?
A) acetyl~S-CoA B) glycogen C) adenosine triphosphate D) H2
Which of the following scientist-discoveries is mismatched?
A. Watson, Crick, Wilkins, and Franklin-DNA structure. B. Avery, MacLeod, and McCarty-DNA is the genetic material. C. Meselson and Stahl-mechanism of DNA replication. D. Griffith-chromosomes.
The heart, muscles, bones, and blood develop primarily from
a. ectoderm. b. mesoderm. c. endoderm. d. the placenta. e. the gray crescent.
During bacterial translation the ribosome recognizes the AUG start codon by?
a. binding to the polyA tail of the RNA b. binding to the 5'cap of the RNA and scanning along the mRNA until it finds an AUG codon in a Kozak consensus c. binding to the 3'UTR of the RNA d. recognizing base pairing between the Shine-Dalgarno sequence and the 16S rRNA