Choose the correct order of the three main types of cytoskeletal elements in increasing order of size.
A. Microtubules, flagella, cilia
B. Actin filaments, intermediate filaments, microtubules
C. Microtubules, cilia, flagella
D. Actin filaments, intermediate filaments, flagella
E. Microtubules, intermediate filaments, actin filaments
Answer: B
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to say: “Unlike a single-celled organism, the cells of a multicellular organism can”
A. divide into new cells. B. migrate or move to new locations. C. grow larger by taking up nutrients. D. replicate their genomes. E. differentiate into specialized cells.
A genetic mutation results in the inability for a cycad to produce coralloid roots. What types of soils would be least conducive to the survival of this cycad relative to members of the species not affected by this mutation?
A. Soils saturated with water. B. Drier soils. C. Soils with lower mean temperatures. D. Soils with lower nitrogen. E. Soils with lower pH.
If a restriction endonuclease cuts a linear DNA three times, how many fragments should there be after
the DNA is subjected to electrophoresis through an agarose gel?
a. 1 b. 2 c. 3 d. 4 e. 5
The backbone of the DNA and RNA, polynucleotides consist of a repeating pattern of sugars, phosphate, sugar, phosphate
a. true b. false