There are five major types of histones in eukaryotic cells. One of these is not part of the structure of nucleosomes and is thought to participate in forming the 30-nm condensed chromatin fiber. Which histone is this?

#Question id: 11233

#Unit 9. Evolution & Diversity of Life Forms

Jams, jellies, preserves, honey, and other foodstuffs with a high sugar content hardly ever become contaminated by bacteria, even when the food containers are left open at room temperature. This is because bacteria that encounter such an environment

#Question id: 11234

#Unit 9. Evolution & Diversity of Life Forms

The typical prokaryotic flagellum features

#Question id: 11235

#Unit 9. Evolution & Diversity of Life Forms

In a bacterium that possesses antibiotic resistance and the potential to persist through very adverse conditions, such as freezing, drying, or high temperatures, DNA should be located within, or be part of, which structures?

1.  nucleoid region

2.  flagellum

3.  endospore

4.  fimbriae

5.  plasmids

#Question id: 11236

#Unit 9. Evolution & Diversity of Life Forms

Which two structures play direct roles in permitting bacteria to adhere to each other, or to other surfaces?

1.  capsules

2.  endospores

3.  fimbriae

4.  plasmids

5.  flagella

#Question id: 11237

#Unit 9. Evolution & Diversity of Life Forms

Which statement about the genomes of prokaryotes is correct?

#Question id: 11238

#Unit 9. Evolution & Diversity of Life Forms

If a bacterium regenerates from an endospore that did not possess any of the plasmids that were contained in its original parent cell, the regenerated bacterium will probably