Answer:
This happened because the check points in cell cycles are not working properly which can help to stop cells having abnormal chromosomes.
See the attachment for proper understanding what actually happened in cell cycle check points.
A tight junction is a watertight seal between two adjacent animal cells, which prevents materials from leaking out of cells.
Explanation:
b is the correct answer of your question
when you grow plants, they are obviously identical to there parent plan, for an example a plant that produces offspring. (parent)
