Which type of signal receptor does NOT generally involve transduction of a signal with the transfer of a phosphate group? (Select all correct choices.)

A. G protein-coupled receptor
B. receptor kinase
C. ligand-gated ion channel
D. nuclear receptor


C,D

Biology & Microbiology

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The Ti plasmid is naturally found in

A. E. coli. B. Pseudomonas. C. Agrobacterium. D. Staphylococcus. E. E. coli AND Staphylococcus.

Biology & Microbiology

Which is the only group of eukaryotes that has two types of nuclei in each cell: one or more small micronuclei, and a single larger macronucleus?

1.Sporozoans 2.Dinoflagellates 3.Euglenoids 4.Ciliates

Biology & Microbiology

The Visual Cortex is located in the

a. frontal lobe. b. parietal lobe. c. temporal lobe. d. insula. e. occipital lobe.

Biology & Microbiology

Predators often avoid a mimic species because of ____.

A. bad taste B. toxic secretion C. resemblance to a well-defended species D. painful sting E. cryptic coloration

Biology & Microbiology