What does each different band on a DNA fingerprint represent?
A) gene
B) VNTR site
C) allele
D) pleiotropy
B
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In the process of biological evolution, new species may evolve through exchange of genes from one species to another. This process is called
In the process of biological evolution, new species may evolve through exchange of genes from one species to another. This process is called
A decrease in cortisol triggers a negative
feedback loop and causes release of a. adrenocorticotropin. b. cortisol. c. corticotropin releasing hormone. d. insulin. e. thyroxine
Plants maintain higher levels of phytochrome at their growing tips where phytochrome plays important roles in growth responses to light. Phytochrome levels are also high in areas of the plant that are "greening." What does this suggest about the role of phytochrome in these "greening" zones?
A. Phytochrome is facilitating the transcription and translation of photosynthesis related proteins. B. Phytochrome is absorbing green wavelengths of light. C. Phytochrome is facilitating the migration of chlorophyll pigments from other areas of the plant. D. In these areas, phytochrome is the first step in the electron transport chain of photosynthesis.
Which feature of mollusks is a rasping tongue-like organ?
A. cheliped B. pedipalp C. gills D. mantle E. radula