The image depicts a. the organisms have changed over time b. that the cenozoic era came before the paleozoic era c. that the paleozoic era is the most recent era in time d. that the organisms living on earth have remained unchanged over time

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

What molecule contains an organisms genetic material, passed down from parents to their offspring

Match each symbol with its description.