In sweet pea, red flower color is controlled by two genes involved in the anthocyanin pathway, A and B. Both genes are required for expression, so that a recessive pair of alleles at either locus would result in a pink phenotype. If an AaBb plant were allowed to self-cross and you got only red and pink flowers, what dihybrid ratio would you expect in the offspring?

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

How water is moving through the ecosystem ?

Ecology can best be described as the study of what