D)...... Hope it helps, Have a nice day:)
A karyotype involves the arrangement of a complete set of an individuals chromosomes (see attached image)
During interphase you cannot see the chromosome because they aren't condensed to the shape you can see through a microscope.
During prophase the Chromosomes become condensed and are able to be seen.
So, to answer your question, you cannot make a proper karyotype while cells are in interphase. Therefore, they would need to be in mitosis phase.
I hope this helps! I'm happy to answer any other questions you might have :)
[image sourced from: http://www.spectral-imaging.com/applications/cytogenetics/karyotyping]
Answer:
Bactericidal products eliminate bacteria while bacteriostatic products keep bacterial populations in check by inhibiting replication.
Explanation:
This would be a crowbar. If you have trouble understand this, just visualize what happens when you pry the lid of a box open with a crowbar. You push one end down, and the other end goes up.