Interferons alpha and beta are effective against viruses.

Answer the following statement true (T) or false (F)


True

Biology & Microbiology

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Many breast cancers are associated with mutations in the BRCA1 gene. Explain the difference between sporadic and

familial breast cancer caused by this gene at a molecular level.

What will be an ideal response?

Biology & Microbiology

How does a positive regulator affect transcription by RNA polymerase in prokaryotes?

A) by allowing passage of the polymerase through an operator B) by interacting with RNA polymerase to increase the frequency of transcription initiation C) by causing the helix to unwind in the operator allowing easier initiation D) by making the transcription start site more exposed to the polymerase

Biology & Microbiology

What is the purpose of the last stage of the citric acid cycle?

a. to replenish the supplies of NAD+ and FAD b. to break down glucose into a three-carbon molecule c. to regenerate oxaloacetate to attach to another acetyl molecule d. to produce ATP by substrate-level phosphorylation

Biology & Microbiology

Which of the following is NOT part of the inflammatory response?

A) Localized tissue swelling B) The release of histamine C) Migration of phagocytes to the site of injury D) The release of antibodies E) Elevated body temperature

Biology & Microbiology