In the developing nervous system, ________ is the signaling molecule that results in the differentiation of ___________
A. Notch; neurons
B. Notch; glial cells
C. Delta; glial cells
D. Delta; neurons
C
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Which invertebrate has an endoskeleton
a. clams b. lobsters c. sea stars d. earthworms e. shrimp
In general, a substance that carries an electric charge can dissolve in water. Given this fact, which of the following would most likely NOT dissolve in water?
A) Ionic compounds B) NaCl C) Nonpolar molecules D) Polar covalent molecules
The processes of photosynthesis and cellular respiration are complementary. During these energy conversions, some energy is
A) lost in the form of heat. B) used to create light. C) destroyed when the chemical bonds of glucose are made. D) saved in the chemical bonds of water, CO2, and O2.
A newly sequenced gene is cloned and expressed in a bacterial cell. The bioinformatics databases suggest that this gene produces an enzyme that catalyzes the conversion of carbon dioxide to bicarbonate. After weeks of experiments, a scientist determined
the enzyme has a completely different function. This is an example of ________. A) incorrect qPCR B) incorrect enzyme experiments C) incorrect annotation D) incorrect sequencing E) incorrect BLAST parameters