Read the given passage and answer the questions that follow :- Broadly, genetic disorders can be grouped into two categories - Mendelian disorders and Chromosomal disorders. Mendelian disorders are mainly determined by alteration and mutation in the single gene. These disorders are mainly transmitted to the offspring on the same lines. The pattern of inheritance of Mendelian disorders can be easily traced in a family. The chromosomal disorders on the other hand are caused due to absence or excess or abnormal arrangement of one or more chromosomes.

What results to polyploidy?

Failure of cytokinesis after telophase Failure of segregation of chromatids during cell division Both 1 and 2 Due to retrovirus entering cell

Failure of cytokinesis after telophase

Failure of cytokinesis after telophase results to polyploidy.