Each of the following is a category into which proteins encoded by oncogenes fit except

A) growth factors.
B) signal receptors.
C) plasma membrane-associated GTP-binding proteins.
D) cell cycle regulators.
E) P450 cytochromes.


Answer: E

Biology & Microbiology

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A small amount of DNA is collected from a crime scene. However, the amount of DNA collected is insufficient to perform the necessary experiments to link a suspect to the crime. Which method could be utilized to increase the amount of DNA?

A. polymerase chain reaction (PCR). B. DNA sequencing. C. fluorescent labeling of DNA. D. microarray analysis. E. gel electrophoresis.

Biology & Microbiology

Which genetic map is derived from overlapping short pieces of DNA and is used to distinguish genes tens of kilobases apart?

A) Cytogenetic map B) Linkage map C) Physical map D) Sequence map

Biology & Microbiology

Muscle that is composed of cylindrical cells that maintain posture is ____

a. skeletal only b. smooth only c. cardiac only d. both skeletal and cardiac e. both cardiac and smooth

Biology & Microbiology

Which protein transports oxygen in the bloodstream?

A) plasminogen B) hemoglobin C) erythropoietin D) thrombin

Biology & Microbiology