Q. Trisomy stands for
A) $2n - 1$
B) $2n + 2$
C) $2n + 3$
D) $2n + 1$
Explanation
Trisomy stands for 2n+1. Chromosomal disorders are caused due to excess, absence or abnormal arrangement of one or more chromosomes. Sometimes the chromatids fail to segregate during cell division, resulting in gain or loss of a chromosome. This is called aneuploidy Aneuploidy is also called heteroploidy Aneuploidy is of two kinds (i) Hyperploidy (ii) Hypoploidy
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.