Which of the following bases is used in RNA but not DNA?

a. adenine

b. thymine

c. uracil

d. guanine

What is a combining form

A person with schizophrenia may have an overactive dopamine system. drugs used to treat this disorder prevent the action of dopamine by keeping it from binding to its receptors. these drugs are

Translation involves the assembling of proteins. Which of the following forms of RNA is responsible for carrying a formed amino acid to the protein assembly site during translation? A. mRNA B. tRNA C. rRNA D. RNA polymerase

How can air pollution affect aquatic ecosystems?

How can this be explained using natural selection

Bacteriophages are bacteria that engulf and destroy viruses

What important role do fungi play in the environment

N males, which of the following organ performs a dual function of ejaculation of sperm and voiding of urine?

Men do not have all ___ in their testes at birth.

All of the following compounds are fibers except a, pectin b, hemicellulose, c, cellulose. d. lignin e, glycogen