A circular molecule of DNA devoid of any histone proteins describes the chromosome of a (an):
A. protozoa
B. yeasts
C. insects
D. flowering plants
E. bacteria
E. bacteria
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The genus Veillonella is unusual because it grows well on organic acids such as lactate and pyruvate, but is normally unable to ferment glucose and other carbohydrates.
Answer the following statement true (T) or false (F)
Why do most viruses only infect one type of cell?
a. Viruses can only live in particular environments found within a select group of cells. b. Viruses can only find the necessary components to keep itself alive in one type of cell. c. Viruses can only infect cells that have the appropriate receptors for them to attach to. d. Viruses cannot move throughout the body so only infect the cells they first come into contact with.
The null hypothesis, which demonstrates that evolution is not occurring from generation to generation, is known as the ________ model
A) Bateman B) Hardy-Weinberg C) Fisher stability D) Mendelian stability
The main parts of a flower are modified versions of which of the following?
A) stems B) rhizomes C) internodes D) leaves