Question

In a flow cytometer you will see the cells lacking both the labels in ____________ quadrant.

(a) 1^st

(b) 2^nd

(c) 3^rd

(d) 4^th

I got this question by my school teacher while I was bunking the class.

I'd like to ask this question from Flow Cytometry and Cell Sorting in section Cancer Biology & Methods in Cytogenetics of Cytogenetics

Answer 1

The correct choice is (c) 3^rd

Best explanation: In the 1^st quadrant and 4^th quadrant one of the two labels are active. In the 2^nd both are active and in the 3^rd none of the labels are present on the molecule.