is the genetic code is essentially the same for all organisms

Which image shows labeled organelles that are present only in plant cells?

Physical characteristics of down syndrome

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