The accommodation of the very long DNA strands that are part of a chromosome into the limited space of the nucleus is achieved by coiling the DNA around beads of histones into repeating subunits. These DNA-wrapped histones are called
A. chromatin loops
B. rosettes
C. nucleosomes
D. solenoids
Answer: C
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True or False: Continuous adaptation and evolution is necessary just to maintain current levels of production as the environment changes
A. true B. false
The plant leaf surface is called the rhizosphere.
Answer the following statement true (T) or false (F)
What unit is used to measure the thermal energy that flows from an object of a higher temperature to an object of a
lower temperature? a. kilograms b. kilometers c. kilowatts d. kilocalories e. kilojoules
Cyclodextrins are a group of compounds capable of removing cholesterol from membranes. The effect most likely to have a large impact on cells as a result of cyclodextrin treatment would be
A. increased membrane fluidity at higher temperatures. B. increased permeability of the membrane. C. increased membrane fluidity at lower temperatures. D. disruption of transmembrane protein structure. E. increased concentration of transmembrane proteins.