Question

Match the type of chromosome (Column I) with the position of its centromere (Column II): Column I: A. Metacentric, B. Sub-metacentric, C. Acrocentric, D. Telocentric
Column II: i. One extremely short arm and one very long arm ii. Terminal centromere iii. One short arm and one long arm iv. Two equal arms

• A. A-IV, B-III, C-I, D-II
• B. A-IV, B-I, C-III, D-II
• C. A-II, B-III, C-I, D-IV
• D. A-III, B-IV, C-II, D-I

Hint:

\[ \boxed{\text{Metacentric → equal arms}} \quad \boxed{\text{Sub-metacentric → unequal arms}} \quad \] \[ \boxed{\text{Acrocentric → one very short arm}} \quad \boxed{\text{Telocentric → single arm}} \]

Answer 1

The Correct Option is A

Concept: Chromosomes are classified based on the position of the centromere:

• Metacentric → centromere in middle

• Sub-metacentric → slightly off-centre

• Acrocentric → near one end

• Telocentric → terminal position

Step 1: Identify matching pairs.
\[ \boxed{\text{Metacentric} \rightarrow \text{IV}} \] \[ \boxed{\text{Sub-metacentric} \rightarrow \text{III}} \] \[ \boxed{\text{Acrocentric} \rightarrow \text{I}} \] \[ \boxed{\text{Telocentric} \rightarrow \text{II}} \]

Step 2: Select correct option.
Thus, \[ \boxed{\textbf{Option (A)}} \]