The number and appearance of chromosomes in a cell is called a karyotype. A karyotype can only be seen and studied with a microscope. ... Karyotype analysis can reveal abnormalities, such as missing chromosomes, extra chromosomes, deletions, duplications, and translocations.
Link:https://study.com/academy/lesson/karyotype-definition-disorders-analysis.html
Note: This information has been taken out of a website.
A. prevent cross-contamination.
The dominant and recessive pair, A
Mostly bacillus (bacteria with cylindrical/rod shaped morphology) I'm pretty sure, you don't see any type of coccus (bacteria with spherical morphology) with flagella.