We have polluted it— the air, water and the ground.
Some people have tried to clean up the environment
An alteration to chromosome structure which only involves one chromosome is called MONOSOMY.
Alterations in chromosomes structures usually leads to mutation. Monosomy refers to the condition of heaving a diploid chromosome complement in which one chromosome lacks its homologous partner.
Cytokinesis is when the cytoplasm divides to form two daughter cells