Approximately what percentage of human DNA does not code for proteins?

A) 49%
B) 79%
C) 98.5%
D) 99.9%


Answer: C

Biology & Microbiology

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Animals that sexually reproduce are ________ and produce __________ gametes

A. haploid; diploid B. diploid; haploid C. diploid; diploid D. haploid; haploid

Biology & Microbiology

Which of the following describes an accurate order of events in translation?

A. Ribosomal translocation occurs before the first aminoacyl-tRNA molecule binds to the small subunit. B. Initiation of translation occurs only after the small subunit dissociates from the mRNA. C. The large subunit of the ribosome binds the mRNA before the small subunit. D. The first aminoacyl-tRNA molecule binds to the small subunit before the large subunit binds.

Biology & Microbiology

Members of the ____ Lophotrochozoan phylum include earthworms, bristle worms, and leeches

a. Rotifera b. Mollusca c. Platyhelminthes d. Annelida e. Nemertea

Biology & Microbiology

What is the best description of a nerve?

A. A bundle of sensory, motor, or both types of nerve fibers outside the central nervous system B. A single extension of a neuron C. The same as a neuron but found only within the central nervous system D. A collection of nerve cell bodies outside the central nervous system E. A set of sensory cells only found in the autonomic nervous system

Biology & Microbiology