Answer: Measures the antigen levels on the cell surface
Explanation: Fluorescence-Activated Cell Sorting. Fluorescence-activated cell sorting (FACS) measures the antigen levels on the cell surface quantitatively. Cells are dyed with a fluorescent antibody, then placed in a stream of liquid which passes the focus of a laser, and each cell emits light.
A threatened abortion is the potential problem.
<h3>What is threatened abortion?</h3>
The term "abortion" refers to the termination of a pregnancy before to 20 weeks of gestation. A threatening, inevitable, incomplete, full, septic, or missed abortion is one of the various forms of spontaneous abortion.
A threatened abortion is described by vaginal bleeding before 20 weeks of gestation in the presence of a positive urine and/or blood pregnancy test with a closed cervical os, without passage of sperm or eggs, and without signs of fetal or embryonic death.
The World Health Organization (WHO) defines a threatened abortion as open bleeding or pregnancy-related bloody vaginal discharge that occurs during the first half of the pregnancy without cervical dilatation.
Learn more about threatened abortion here:
brainly.com/question/4414586
#SPJ4
