Asymbolic relationship in which one species benefits and the other is harmed but not immediately killed is known as

mutualism

predation

commensalism

parasitism

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.