Which term refers to a mutualistic symbiosis where fungal hyphae penetrate plant root cells?

a. an ectomycorrhiza
b. an arbuscular mycorrhiza
c. a lichen
d. a haustorium


Ans: b. an arbuscular mycorrhiza

Biology & Microbiology

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The genomes of mammalian mitochondria contain

A. a total of 37 genes. B. genes for proteins used in oxidative phosphorylation. C. genes whose products are used in translation of mRNA. D. ribosomal genes. E. All of the items listed are correct.

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Which of the following is an incorrect match?

a. pea pods; dehiscent b. strawberry; berry c. cherry; drupe d. corn; indehiscent e. tomato; berry

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Under certain circumstances, a person's resident biota can act as opportunistic pathogens.

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

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Osama Shimomura, Martin Chalfie, and Roger Tsien won the Nobel Prize for Chemistry for their discovery and development of ________

A) RT-PCR B) PCR C) a novel DNA sequencing method D) GFP E) RFLPs

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