Motor proteins provide for molecular motion in cells by interacting with what types of cellular structures?
A) mitochondria and chloroplasts
B) membrane proteins of the inner nuclear envelope
C) free ribosomes and ribosomes attached to the ER
D) components of the cytoskeleton
E) cellulose fibers in the cell wall
Answer: D
You might also like to view...
The process of natural selection results in Select all that apply.
_____ Extinction. _____ Random genetic mutations. _____ Adaptation. _____ Speciation.
Which of these affects allele frequencies the least?
A) Natural selection B) Mutation C) Migration D) Genetic drift
With the extinction of the dinosaurs 65 million
years ago, multiple niches that the dinosaurs once filled opened up and allowed mammals the opportunity to evolve and exploit those niches. In other words, mammals underwent a(an)
a. sympatric speciation. b. adaptive radiation. c. exaptation. d. behavioral isolation. e. phylogenetic isolation
Many variants are produced during the long course of an HIV infection. Which variant would be most fit in the environment of the human body?
A) a virus that infects liver cells B) a virus that reproduces very slowly C) a virus that makes fewer mistakes when replicating its RNA D) a virus that can't be recognized by the patient's immune system