Epigentic mechanisms of gene regulation ____ and are ____
A. can be inherited by daughter cells;
permanent
B. can be inherited by daughter cells; often
reversible and responsive to environmental
change
C. can be inherited by daughter cells; random
with respect to the environment
D. are not inherited by daughter cells;
reversible and responsive to environmental
change
E. are not inherited by daughter cells;
permanent
B
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Proteins with ______________ bind to acetylated Lys residues on the histone tail, recruiting other histone modifying complexes and spreading the pattern of acetylation to nearby histones
Fill in the blanks with correct word
Sulfate-reducing bacteria (SRB) are very important in the cycling of sulfur within ecosystems because significant amounts of sulfate are present in almost all aquatic and terrestrial habitats, making SRB widespread and active.
Answer the following statement true (T) or false (F)
Dense connective tissue is indicated by the letter ____
a. A b. B c. C d. D e. E
A rain shadow is caused by
A) ocean currents that heat and cool more quickly than do air or landmasses. B) cool, dry air that warms as it moves down over a mountain, picking up moisture. C) large mountain masses in the center of continents that restrict air flow. D) ocean currents that heat and cool more slowly than do air or landmasses. E) warm, moist air that cools as it moves down over a mountain, releasing moisture.