You use several model organisms in your lab's research. Which of your model organisms would you expect to exhibit a higher mutation frequency: E. coli, D. melanogaster, or M. musculus?

What will be an ideal response?


M. musculus

Biology & Microbiology

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During Drosophila development, there is a regulatory cascade of gene activation. The proper sequence for this cascade is _____

A) bicoid, gap genes, pair-rule genes, and segment polarity genes B) bicoid, pair-rule genes, gap genes, and segment polarity genes C) bicoid, segment-polarity genes, gap genes, and pair-rule genes D) bicoid, gap genes, segment polarity genes, and pair-rule genes

Biology & Microbiology

You are a virologist studying a particularly pathogenic virus that infects sea turtles. In the course of your research, you discover that the virus is destroyed by a protein-digesting enzyme. The structure most vulnerable to this enzyme must be the viral

a. membrane. b. envelope. c. DNA. d. capsid.

Biology & Microbiology

When you eat an apple, the core left over is the ovary.

a. true b. false

Biology & Microbiology

In a negative feedback mechanism, the _____ is a muscle or gland that functions to carry out the selected response

receptor control center effector factor

Biology & Microbiology