What need to be recognized by the t cells on the antigen presenting cells before becoming fully activated?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

What characteristic makes a cell membrane selectively permeable

Follow the directions for self-quiz question 8, draw it, by labeling the appropriate structures with these terms, drawing lines or brackets as needed: chromosome (label as replicated or unreplicated), centromere, kinetochore, sister chromatids, nonsister chromatids, homologous pair, homologs, chiasma, sister chromatid, cohesion