As an Undergraduate Research Assistant in the Lab of the Famous

Multiple Choice

As an undergraduate research assistant in the lab of the famous Dr.S.Nameerf,you are assisting with a radioisotope tracer experiment.You expose a mature leaf on one side of the lower shoot of a sugar beet plant to ¹⁴CO₂ and then track the movement of the ¹⁴C atoms by radiography.Where are you least likely to detect ¹⁴C?

A) the treated leaf
B) the shoot apical meristem
C) the roots
D) a mature upper leaf on the opposite side of the plant from the treated leaf
E) a young leaf directly above the treated leaf