Pls when water and nutrients from the soil travel up from the roots of a plant through the stem to the leaves, they do so in which of the following structures? a. cortex b. epidermis c. phloem d. xylem

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.

What is a group of organisms that are closely related and share similar characteristics

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