Cuántas células tiene el ceibo?

When does dna replication(make a copy of itself)?

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked

What did you notice about the onion root tip cells that you saw at 40x power?