Aresearch team studied a large lizard population in the sonoran desert of arizona. in these lizards, gene a is one gene that affects the color pattern on the dorsal surface of the lizard’s body. in 2010, the research team sampled a large number of lizards and determined the genotypes of the lizards for the a gene. they found the following genotype frequencies: a1a1 = 0.17, a1a2 = 0.15 a2a2 = 0.68. what is the frequency of the a1 allele? 0.49 0.5 0.34 0.17 0.245 0.755 0.15

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.