In late Paleozoic and much of the Mesozoic era the region was affected by a series of orogenies (mountain-building events) that deformed western North America and caused a great deal of uplift. Eruptions from volcanic mountain ranges to the west buried vast regions beneath ashy debris.
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Antibodies are produced by specialized white blood cells called B lymphocytes
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Multiple alleles are more than two alternative forms of a gene, located at the same loci of homologous chromosomes. In polygenic traits, several genes are involved in determining a single trait. Multiple alleles follow complete dominance or codominance while polygenic traits follow codominance or incomplete dominance.
Explanation:
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