Alleles are defined as ________
a. paired chromosomes with the same size and shape
b. different genes
c. different forms of a gene
d. genetically identical copies of an individual
c
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What would a fucoxanthin carotenoid stain be most useful in identifying?
A) brown or golden algae B) flagellated algae C) photosynthetic diatoms D) slime molds from other molds
Radiometric dating of the most ancient fossils uses the
a. dating volcanic rocks above and below the fossil-containing layer of sedimentary rock. b. ratio of carbon 14 to carbon 12 in a sample of the fossil. c. counting of the rings of trees found with the fossils. d. comparison of unknown fossils with fossils of known age. e. transmission of radio waves through the fossil.
Govingee, 35 years old, has recently become lethargic, and his face feels very cool but puffy to the touch. When you take his pulse, you note that it seems abnormally low. What condition might Govingee have?
A) low thyroid hormone B) excess calcitonin C) accumulating aldosterone D) low growth hormone
At what point in human history did the human population start to grow exponentially?
A. Stone age B. Iron age C. Middle ages D. Industrial revolution E. Age of technology