In their study of the Madagascar lace plant,how did the researchers establish that the holes were formed through programmed cell death?
A)They tested for apoptosis using the TUNEL assay.
B)They found suberin around the margins of the holes.
C)They found no nutrients in the cells forming the hole.
D)They tested for a waxy substance that triggered programmed cell death.

Question

Quizplus · Accepted Answer

The researchers established that the holes were formed through programmed cell death by testing for apoptosis using the TUNEL assay. This assay detects DNA fragmentation, which is a characteristic of apoptotic cells. The researchers were able to detect DNA fragmentation in the cells forming the holes, providing evidence that programmed cell death was responsible for the formation of the holes.

In Their Study of the Madagascar Lace Plant,how Did the Researchers