Which of the following protein fibers is used for cellular movement and are extremely thin in size?

A. cilia
B. centrosome
C. actin filaments
D. intermediate filaments
E. microtubules


Answer: C

Biology & Microbiology

You might also like to view...

Four of these statements about master genes are true. Which statement is not true?

a. They orchestrate layers of development. b. They are highly conserved over evolutionary time. c. Mutations within these are frequently devastating. d. They are highly variable in their sequences between species. e. Mutations usually result in changes in body plan.

Biology & Microbiology

The two image-forming lenses of a compound light microscope are

a. the condenser and objective. b. the condenser and the ocular. c. the objective and ocular. d. none of these choices.

Biology & Microbiology

What is the name of the replication unit in prokaryotes, and how does it differ in eukaryotes?

What will be an ideal response?

Biology & Microbiology

The process of independent assortment refers to

A. the random meeting of an egg and sperm. B. the random choice of which cell in germ-line tissue will begin meiosis. C. whether sexual or asexual reproduction will occur. D. the orientation of homologous chromosomes at metaphase I. E. the orientation of chromosomes at metaphase II.

Biology & Microbiology