What best describes the composition of a nucleosome complex (with no H1)?
A. H2A, H2B, H3, H4, along with 147 bp of DNA
B. H2A, H2B, H3, H4, along with 168 bp of DNA
C. 2 molecules each of H2A, H2B, H3, and H4, along with 147 bp of DNA
D. 2 molecules each of H2A, H2B, H3, and H4, along with 168 bp of DNA
D
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Which method would be LEAST effective at sterilizing a glass hockey stick to use in the spread-plate method?
A) autoclaving B) gamma radiation C) ethanol soaking D) ultrahigh-temperature pasteurization
Cells that undergo amoeboid movement have an outer layer of thick, gelatinous cytoplasm called the ________ and an inner layer of more fluid cytoplasm called the ________.
A) ectoplasm; endoplasm B) lamellipodium; pseudopodium C) gelation layer; solation zone D) protoplasm; proplasm E) outer jelly; inner soup
Which of the following is the study of collective genomes of multiple interacting species in an environment?
a. pharmacogenomics b. proteomics c. genetic recombination d. metagenomics
Plant cell walls can contain all of the following except
a. Cellulose. b. Chitin. c. Lignin. d. Pectin. e. Both pectin and lignin.