Which is the smallest particle of a macromolecule?

a. monomer
b. Polymer

What role do bacteria play in the carbon cycle

Which of these statements are true about scientific theories and hypothesis

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.