Which of the following is correct regarding the given figure ?

Options

A. (a) `{:("No. of","No. of","No. of"),("centromere","kinetochore","arms"),(" 2"," 1"," 4"):}`
B. (b) `{:("No. of","No. of","No. of"),("centromere","kinetochore","arms"),(" 1"," 2"," 4"):}`
C. (c) `{:("No. of","No. of","No. of"),("centromere","kinetochore","arms"),(" 2"," 2"," 4"):}`
D. (d) `{:("No. of","No. of","No. of"),("centromere","kinetochore","arms"),(" 1"," 2"," 2"):}`

Answer

B

Explanation

Centromere, also called primary constriction, is a non-stainable area. At this region, each chromatid has a trilaminar plate-like kinetochore where spindle microtubules join the chromosome during cell division. Kinetochore plays an important role in chromosome movement.