Ahorticulturalist wants to produce geraniums with specific characteristics. she knows that the trait of red flowers is governed by the allele r (rr and rr) and the trait of white flowers is governed by the allele r (rr). the horticulturalisst has a red geranium with an uncertain genetic makeup. she crosses it with a white geranium (rr) and gets a generation in which half of the plants have red flowers and have white flowers. what does this combination of offspring tell her about the genetic makeup of the red geranium parent?

Red geranium: R White geranium: r Then if: F1: 2/4: Red and 2/4:White P:Rr x rr F1: Rr, Rr, rr, rr That means that the red geranium he crossed was heterozygous for the gene red flowers

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.