In the Drosophila embryo, gap genes govern the partitioning of the anterior-posterior gradient into segments
A. true
B. false
A
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The figure above represents ____
a. an exergonic reaction b. a metabolic pathway c. allosteric inhibition d. allosteric regulation e. an endergonic reaction
__________, the first vertebrates able to complete
their life cycle on dry land, have water conserving skin and kidneys, and amniote eggs. Fill in the blank(s) with the appropriate word(s).
New England salt marshes experience a greater amount of plant growth in a given area in one year than any other temperate ecosystem. What characteristic do these salt marshes have?
A) low net primary productivity (NPP) B) high biodiversity C) high NPP D) an unlimited carrying capacity
The most important result of mitosis is the
A. production of new varieties of cells to meet changes in the environment. B. exact duplication of the parent cell's genetic information. C. equal division of the parent cell's genetic information between the two daughter cells. D. equal distribution of the parent's cytoplasm between the two daughter cells.