A species of bent grass has a gene that controls whether it is tolerant of (or susceptible to) copper
poisoning The more copper that is present in soil, the greater the survival and reproductive
advantage tolerant plants have over susceptible plants, When copper levels are particularly high,
susceptible plants die as seedlings before reaching reproductive maturity. In contrast, where soil-
copper levels are normal, susceptible plants grow and reproduce much better than copper-
tolerant plants. Bent-grass reproduction does not rely on animals, as its pollen and seeds are both
carried by wind. The tolerant phenotype is inherited in a completely dominant fashion over the
susceptible phenotype. In an abandoned copper-mine sile, a sample of 100 mature bent-grass
individuals was taken to a genetics lab, and the genotypes for copper tolerance were identified:
55 homozygous tolerant and 45 heterozygous. Is there evidence for evolution of the copper-
tolerance gene in this population of bent grass at the abandoned mine site? If so, what might be
causing the evolution? Is there evidence for more than one evolutionary mechanism acting?.
Hybridoma Technology ( Production , Purification , and Application )
A species of bent grass has a gene that controls whether it is toleran.pdf
1. A species of bent grass has a gene that controls whether it is tolerant of (or susceptible to) copper
poisoning The more copper that is present in soil, the greater the survival and reproductive
advantage tolerant plants have over susceptible plants, When copper levels are particularly high,
susceptible plants die as seedlings before reaching reproductive maturity. In contrast, where soil-
copper levels are normal, susceptible plants grow and reproduce much better than copper-
tolerant plants. Bent-grass reproduction does not rely on animals, as its pollen and seeds are both
carried by wind. The tolerant phenotype is inherited in a completely dominant fashion over the
susceptible phenotype. In an abandoned copper-mine sile, a sample of 100 mature bent-grass
individuals was taken to a genetics lab, and the genotypes for copper tolerance were identified:
55 homozygous tolerant and 45 heterozygous. Is there evidence for evolution of the copper-
tolerance gene in this population of bent grass at the abandoned mine site? If so, what might be
causing the evolution? Is there evidence for more than one evolutionary mechanism acting?
