Open Coil (uncovered) humbucker pickup. Covered humbucker pickup on a Les Paul. A humbucking pickup, or humbucker, is a type of electric guitar pickup that uses two coils to buck the hum (or cancel out the interference) picked up by coil pickups.n 1996, Kinman Guitar Electrix introduced replacement pickups for Stratocaster and Telecaster guitars. These were of the stacked humbucker design, where the lower pickup coil functions solely to cancel hum.
What does a karyotype show? A: A karyotype shows the shape, relative sizes and general structures of an organism's chromosomes. This technique, which uses special dyes and microscopes to view the chromosomes, is very useful for detecting large mutations or other abnormalities in an organism's genes.
Cells are later taken from the new sample and stained. The laboratory specialist uses a microscope to examine the size, shape, and number of chromosomes in the cell sample. The stained sample is photographed to show the arrangement of the chromosomes. This is called a karyotype. Certain problems can be identified through the number or arrangement of the chromosomes.