Condensation of DNA yields the 30 nm filament. This filament:
A. is the most compact form of eukaryotic DNA.
B. is moderately condensed DNA, as facilitated by H1 and the N-terminal tails.
C. is also called the chromosomal scaffold.
D. includes tetranucleosomes, each 30 nm in diameter.
E. would not include histone variants.
B
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Which of the following must be provided to the BLAST program for identifying homologous sequences within the database?
A. nucleotide sequence B. amino acid sequence C. protein molecular weight D. protein molecular weight or nucleotide sequence E. nucleotide sequence or amino acid sequence
Which forms of disease are not considered by epidemiology?
a. psychological diseases b. communicable disease c. no forms of disease are ignored d. noncommunicable disease e. drug addictions
Refer to the accompanying figure. What structure is designated by label B?
a. activation gate b. inactivation gate c. modulatory sensor d. transport pump e. transport sensor
What are lichens?
A) A symbiotic association of algae and fungi B) A symbiotic association of algae and Archaea C) Algae D) Archaea E) Fungi