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NEETBotanyCell - The Unit of Life

In an acrocentric chromosome, the centromere is situated close to its end. This specific position of the centromere results in the formation of:

Options

  1. Aone short arm and one long arm
  2. Bone extremely short and one very long arm
  3. Ctwo equal arms
  4. Da single arm due to a terminal centromere

Correct answer

B. one extremely short and one very long arm

Step-by-step solution

According to NCERT, based on the position of the centromere, chromosomes can be classified into four types. The acrocentric chromosome has the centromere situated close to its end, which results in the formation of one extremely short and one very long arm. A sub-metacentric chromosome has the centromere slightly away from the middle, forming one short arm and one long arm. A metacentric chromosome has a middle centromere forming two equal arms. A telocentric chromosome has a terminal centromere. Answer: one extrem

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