Which of the following is most critical for the association between histones and DNA?
A) Histones are small proteins.
B) Histones are highly conserved (that is, histones are very similar in every eukaryote).
C) Histones are synthesized in the cytoplasm.
D) There are at least five different histone proteins in every eukaryote.
E) Histones are positively charged.
Answer: E
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The two amino acids depicted above both have side groups (R groups) that are
a. acidic and polar. b. uncharged and nonpolar. c. basic and polar. d. positively and negatively charged and nonpolar. e. uncharged and polar.
The type of microscope that uses two or more glass lenses to refract light in order to enlarge an image
is a(n) a. compound light microscope. b. electron microscope. c. transmission electron microscope. d. scanning electron microscope. e. scanning tunneling microscope.
The goal of polymerase chain reaction (PCR) is to determine the sequence of nucleotides in a stretch of DNA
Indicate whether the statement is true or false
Vertical transmission include all of the following routes EXCEPT:
A. Transplacental B. Contracting the microbe during childbirth C. Viral DNA sequence found in the parental genome D. breast milk E. ingestion of infected milk formulae