Phylogenetic oligonucleotide arrays (POAs) contain rRNA sequences as probes and are used as a means to detect complementary rRNA sequences from the environment.

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


True

Biology & Microbiology

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How is a T cell receptor similar to an IgM?

A. Both are produced by T cells. B. Both can bind to a specific antigen. C. Both are organized with variable and constant segments. D. Two answer options are correct: both can bind to a specific antigen AND both are organized with variable and constant segments.

Biology & Microbiology

Which process is performed by bacteria in mutualistic relationships with legumes?

a. ammonification b. biological magnification c. denitrification d. nitrification e. nitrogen fixation

Biology & Microbiology

Which of the labeled graphs above represents the age span of worker bees primarily occupied by

packing pollen?

a. A b. B c. C d. D e. E

Biology & Microbiology

The Krebs cycle requires 

A. a four-carbon acid. B. coenzyme A (CoA). C. an acetyl group (2C). D. All of these answers are true.

Biology & Microbiology