The dna sequences, indicated by alphabetic abbreviations, are alternate forms of the same gene called

Which blood cell spend most of their time in the lymphatic system?

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry