NEETBotanyCell - The Unit of Life
Read the following statements carefully: (A) Every chromosome essentially has a primary constriction or the centromere. (B) Disc-shaped structures called kinetochores are present on the sides of the centromere. (C) Based on the position of the centromere, chromosomes are classified into five types. (D) The metacentric chromosome has a middle centromere forming two unequal arms. (E) The telocentric chromosome has a te
Options
- ATwo
- BFour
- CThree
- DFive
Correct answer
C. Three
Step-by-step solution
Statement (A) is correct as every chromosome essentially has a primary constriction or centromere. Statement (B) is correct because disc-shaped structures called kinetochores are indeed present on the sides of the centromere. Statement (C) is incorrect because based on the position of the centromere, chromosomes are classified into four types (metacentric, sub-metacentric, acrocentric, and telocentric), not five. Statement (D) is incorrect because a metacentric chromosome has a middle centromere forming two equal a