The majority of human DNA does not code for genes.

a. true
b. false


Ans: a. true

Biology & Microbiology

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A well-substantiated explanation of some aspect the natural world, based on a body of facts that have been repeatedly confirmed through observations and experiments, is referred to as a(n) ________.

A. hypothesis B. theory C. fact D. idea

Biology & Microbiology

Which of the following is not true of the translocation step of translational elongation in bacteria?

A. The deacylated tRNA is moved from the P site to the E site. B. EF-G binds to the A site, mimicking a EF-Tu-aminoacyl-tRNA complex. C. EF-G hydrolyzes GTP. D. The peptidyl-tRNA moves from the P site to the A site.

Biology & Microbiology

A genetic code word is called a(n)

A) proton. B) codon. C) nodoc. D) amino acid.

Biology & Microbiology

Below is the structure of octane, the major component of gasoline. What type(s) of bond(s) is(are) found in a molecule of octane?


A) only nonpolar covalent bonds
B) only polar covalent bonds
C) hydrogen bonds and polar covalent bonds
D) ionic bonds and nonpolar covalent bonds

Biology & Microbiology