When arabinose is present in the environment, the AraC protein acts as a(n) ________ for the E. coli ara operon.
Fill in the blank(s) with the appropriate word(s).
inducer
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How is the structure of kinesin related to its function?
A) Kinesin has two intertwined polypeptides that make up the stalk and enable it to contract and shorten. B) Kinesin has a tail region that binds to vesicles and two heads that can attach to microtubules. C) The kinesin tail has an ATP binding site to fuel its activities. D) Kinesin has two heads to attach to the vesicle being moved and a tail region that attaches to microtubules.
"Flesh-eating" Streptococcus pyogenes is considered a newly emerging disease
Indicate whether this statement is TRUE or FALSE.
Which of the following is not a characteristic of an autosomal recessive disorder pedigree?
A. Affected children can have unaffected parents. B. Both males and females are affected with equal frequency. C. Two affected parents will always have affected children. D. Affected individuals with homozygous unaffected mates will have unaffected children. E. Heterozygotes have an affected phenotype.
During _______, RNA polymerase synthesizes a molecule of RNA using DNA as a template.
A. mRNA splicing B. translation C. transcription D. gene sequencing E. termination