Use the drop-down menus to answer the questions about the diagram. Letter H is a(n) . Which of these is youngest? Which of these was eroded? Which happened first?

The difference between amphid and plasmid

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen

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.