Answer: yersinia pestis spreads from a bubo or from the lungs into the bloodstream. It can also happen if the Y. pestis bacteria get into the bloodstream after a person has direct contact with the meat or blood of an infected animal.
Explanation:
genome chromosome gene base pair
Answer:
The centromeres split and the sister chromatids are pulled to opposite poles of the cell. The chromosomes reach the poles and stop moving.
Explanation:
