Imagine that one of the original four mice that escape from a research lab is blind due to a genetic defect. If the escaped mouse breeds and most of the mice born in subsequent generations are blind from birth, this is most likely a case of
A) selective mutation.
B) the founder effect.
C) artificial selection.
D) natural selection.
E) an equilibrium population.
B
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What chromosomes belong to a normal human female?
A) 22 autosomes and 2 X chromosomes B) 44 autosomes and 2 X chromosomes C) 44 autosomes, one X chromosome, and one Y chromosome D) 46 autosomes and two X chromosomes
Significant amounts of the NADPH required for the Calvin-Benson cycle are produced during the (cyclic/noncyclic) photophosphorylation reactions of photosynthesis
What will be an ideal response?
A calorie is the commonly used unit of chemical energy. It is also the unit of
A. light. B. magnetism. C. sound. D. heat. E. radioactivity.
Which of the following materials is produced by the vascular cambium? Select all correct choices
A. secondary xylem B. cork C. secondary phloem D. wood E. bark