Which of the following is NOT a type of chromosome, on the basis of the location of the centromere?

Lophocentric

The correct answer is Option (3)- Lophocentric

Out of the listed options, Lophocentric is NOT a type of chromosome based on centromere location.

Here's a breakdown of the recognized chromosome types based on centromere location:

• Metacentric: The centromere is located in the middle, dividing the chromosome into two equal arms.
• Submetacentric: The centromere is slightly off-center, resulting in one arm being slightly longer than the other.
• Acrocentric: The centromere is located very close to one end, creating a short arm and a long arm.
• Telocentric: (Rare) The centromere is located at the very tip of one end, essentially creating a single long arm.

"Lophocentric" is not a standard term used in chromosome classification based on centromere position.