-_____ are symbionts with young roots that enhance

a plant’s ability to absorb mineral ions from soil. Fill in the blank(s) with the appropriate word(s).


Answer: Mycorrhizae

Biology & Microbiology

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Which of the following is a nonpolar (hydrophobic) amino acid?

A) valine B) serine C) tyrosine D) lysine E) aspartate

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A yellow-pigmented, gram-negative rod on blood agar that is oxidase-positive, motile by wet mount, and has the ability to oxidize glucose, xylose, and sucrose is most likely which of the following?

a. Treponema b. Leptospira c. Borrelia d. Sphingomonas

Biology & Microbiology

When an action potential begins

a. sodium is blocked from leaving the neuron cytoplasm. b. sodium is blocked from entering the neuron cytoplasm. c. sodium diffuses from the interstitial fluid into the neuron cytoplasm. d. sodium diffuses from the neuron cytoplasm into the interstitial fluid. e. sodium is actively pumped from the interstitial fluid into the neuron cytoplasm

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The incorporation of the lacZ gene into the JCVI-syn1.0 genome was used as an indicator for successful transplantation because ________

A) the original genome of M. mycoides contained lacZ B) the M. capricolum genome did not include lacZ C) tetracycline resistance is conferred by lacZ D) tetracycline resistance is a selective marker

Biology & Microbiology