When native chromatin is digested with micrococcal nuclease, what significant result occurs?
What will be an ideal response?
DNA fragments of approximately 200 base pairs in length are formed.
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Scientists isolate cells in various phases of the cell cycle. They find a group of cells that have times more DNA than G1 phase cells. The cells of this group are _____
A) between the G1 and S phases in the cell cycle B) in the G2 phase of the cell cycle C) in the M phase of the cell cycle D) in the S phase of the cell cycle
Answer the question using the accompanying figure. Which image represents the position of the Earth during the
vernal (March) equinox?
a. a b. b c. c d. d e. A and C
Resource partitioning is an example of nature's ability to reduce the negative effects of what species interaction?
A. competition B. predator/prey C. parasite/host D. herbivory E. commensalism
The first three phases of the cell cycle are collectively known as
A.) a gap B.) telophase C.) mitosis D.) interphase