By which mechanism do microbes communicate with each other in biofilm formation?
A. Conjugation
B. Chemotaxis
C. Quorum sensing
D. Gliding motility
C. Quorum sensing
You might also like to view...
Which of the following should have had gene sequences most similar to the charophyte (stonewort) that was the common ancestor of the land plants?
A) early angiosperms B) early bryophytes C) early gymnosperms D) early lycophytes E) early pterophytes
What is an acceptable probability of sampling error that may have skewed the results in most scientific studies?
a. 80% b. 50% c. 25% d. 10% e. 5%
Nucleosomes are best described as:
a. eukaryotic DNA associated with histone proteins. b. prokaryotic DNA associated with nonhistone proteins. c. eukaryotic DNA associated with nonhistone proteins. d. prokaryotic DNA associated with histone proteins. e. eukaryotic DNA associated with scaffolding proteins.
Suppose that a cell has a genetic mutation such that the primase enzyme is unable to make RNA primers. Also, assume that all of the other enzymes directly involved in DNA replication are still functional in these cells. How much of the process of DNA replication would you expect to see in these cells?
a. None; no part of the DNA replication process could occur. b. Both the leading and lagging strand would be synthesized, but Okazaki fragments would not be joined together. c. The DNA helix would be unwound by helicase, but no new strands would be produced. d. The leading strand woul