Media containing some ingredients of unknown chemical composition are called ________ media.

A. defined
B. complex
C. synthetic
D. undefined


Answer: B

Biology & Microbiology

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The deepest underwater trench in the world is:

a. Mariana Trench. b. Peru-Chile Trench. c. Java Trench. d. South Sandwich Trench. e. Aleutian Trench.

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In cocker spaniels, black coat color (B) is dominant over red (b), and solid color (S) is dominant over

spotted (s). If two dihybrids (Bb Ss) were crossed, what fraction of the black, solid offspring would be homozygous? a. 4/16 b. 9/16 c. 1/9 d. 3/16 e. 3/4

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To better understand which genes are involved in developmental pathways, geneticists use experimental analyses of mutant phenotypes. What is this analytic approach called?

What will be an ideal response?

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A TATA box is seen in ____ cells and is the site where ____

a. prokaryotic; RNA polymerase binds b. eukaryotic; DNA ligase cleaves introns c. eukaryotic; RNA polymerase binds

d. both prokaryotic and eukaryotic; transcription factors bind e. prokaryotic; a repressor protein binds

Biology & Microbiology