Question

In a chromosome, a .......... is a constricted region with attachment sites for microtubules.

• A. Chromatid
• B. Cleavage furrow
• C. Cell plate
• D. Centromere

Answer 1

The correct option is D Centromere

The centromere appears as a cytologically visible primary constriction on mitotic chromosomes. The centromere is the point of attachment of the kinetochore, a structure to which the microtubules of the mitotic spindle become attached.

So, the correct option is 'Centromere'.