The ability of a cell to switch a gene on or off (gene regulation) is an important survival mechanism in prokaryotes. Explain how lactose fermenting bacteria like Escherichia coli are
able to regulate the metabolism of lactose in their environment

Which of the following is not a defining characteristic of plants?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

Autonomous underwater explorers will be used to gather large-scale ocean information select the best answer from the choices provided ot