A mutation causes a gene to become overactive, contributing to uncontrolled cell growth. Which term best describes this gene?

A. tumor-suppressor gene
B. oncogene
C. spliced gene
D. alternatively spliced gene
E. malignant gene


B. oncogene

Biology & Microbiology

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Retroviruses have a +ssRNA as their genome. In order to complete an infection, they must first make a ________ molecule, which they use to direct the synthesis of mRNA.

A. -ssRNA B. dsDNA C. dsRNA D. DNA:RNA hybrid

Biology & Microbiology

The major carbon reservoir in marine ecosystems is ____

a. cell respiration b. in marine sediments c. volcanic eruptions d. photosynthesis e. ocean runoff

Biology & Microbiology

Desulfovibrio bacteria can perform the following reaction: S6- S2-. These bacteria are

a. Synthesizing sulfur. b. Reducing sulfur. c. Hydrolyzing sulfur. d. Oxidizing sulfur.

Biology & Microbiology

Retroviruses are unique because they are a combination of RNA and DNA.

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

Biology & Microbiology