Intermediate filaments
A) can be composed of the protein vimentin.
B) are solely responsible for animal cell shape.
C) are composed of ?-and ?-tubulin.
D) are 70 nm in diameter.
E) both choices A and D
A) can be composed of the protein vimentin.
You might also like to view...
When nucleotides polymerize to form a nucleic acid _____
A) a covalent bond forms between the sugar of one nucleotide and the phosphate of a second B) a hydrogen bond forms between the sugar of one nucleotide and the phosphate of a second C) covalent bonds form between the bases of two nucleotides D) hydrogen bonds form between the bases of two nucleotides
For mechanisms of sex determination, which of the following is incorrectly paired?
A. X-Y, cow B. X-O, grasshopper C. ZZ-ZW, bluebird D. 1n-2n, pea plant E. high temperature-low temperature, alligator
If the DNA triplets are ATG?CGT, the mRNA
codons are a. AUG?CGU. b. ATG?CGT. c. UAC?GCA. d. UAG?CGU. e. all of these.
In the Watson–Crick model of DNA structure, the polynucleotide chains ____
a. are of unequal length b. are arranged with the bases forming the backbone of the helix c. form covalent bonds between uracil and adenine d. are oriented in the same direction e. are oriented in opposite directions