Define xenograft.
A graft of tissue taken from a donor of one species and grafted into a recipient of another species.
A graft of tissue taken from a donor of one species and grafted into a recipient of the same species.
A graft of tissue taken from a donor of one species, modified, then grafted back into the same donor as a recipient.
Longitudinal vs Cross-sectional analysis. Which is which?
Cross-sectional analysis = all mice sacrificed at same specific time point; Longitudinal analysis = mice sacrificed at ethical end point.
Cross-sectional analysis = mice sacrificed at ethical end point; Longitudinal analysis = all mice sacrificed at same specific time point.