The atom:
A. is the basic unit of matter.
B. is the unit of composition for elements.
C. contains protons, neutrons, and electrons.
D. has negatively charged particles circling around a positively charged nucleus.
E. All of these statements about atoms are correct.
Answer: E
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In a solution at pH 7.0, a polymer of lysine (polylysine) is a random coil with no secondary structure. In order for it to possibly assume an ?-helix structure, the pH of the solution must be:
A. 4 B 6 C. 8 D. 10 E. 12
The PCR method was developed by
A. Mullis. B. Sanger. C. Cohen. D. Boyer.
The online Basic Local Alignment Search Tool (BLAST) allows users to
A) predict the proteome of a cell under different conditions. B) align their genome with that of others to explore differences among humans. C) search molecular biology databases for nucleotide or protein sequences similar to a query sequence. D) search their own genome for single nucleotide polymorphisms associated with disease. E) search a database to identify individuals based on their DNA fingerprint.
growth as certain organelles double
What will be an ideal response?