Which protein is lethal to humans in a very small amount?

a. Actin
b. Salt
c. Ricin
d. Troponin
e. Myosin


c

Biology & Microbiology

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During the first phase of glycolysis, ATP is used to form what type of bond with glucose?

A) phosphoester B) phosphoanhydride C) substrate-level phosphorylation D) dehydrogenation E) hydrogenation

Biology & Microbiology

To inhibit the transcription of operon genes, the lacI gene product binds to

A) the operator. B) the promoter. C) the repressor. D) the inducer. E) ß-galactosidase.

Biology & Microbiology

Human height shows a continuous variation from the very short to the very tall. Height is most likely controlled by

A. sex-linked genes. B. epistatic genes. C. mutations. D. multiple genes.

Biology & Microbiology

The breeding of plants and animals for particular traits by humans is called _______.

A. natural selection B. paleontology C. sexual recombination D. homology E. artificial selection

Biology & Microbiology