The answer is C. Chromsomes make up part of the DNA and carry the information needed to code for the DNA's proteins.
The blood is collected in heparinized capillary tubes to prevent clotting. Heparin is a blood thinner and this anticoagulant is produced naturally by mast cells and basophils. But heparin can not dissolve or break the preformed clots.
It is basically a structure which helps segregate the chormosomes in to the daughter cells
hope this was helpful
The cell membrane is semi-permeable, kind of like a filter to let some molecules in and keep larger molecules out
