Q. True or false

♧.Xylem and Phloem are simple tissues.​

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.

Compare and contrast region e in the illustration above with region d. describe the physical characteristics of each region.

According to the cladogram, which organisms have roundworms as a common ancestor?