NEETBiologyCell Cycle and Cell DivisionMCQ+4 / −1
Match List-I with List-II :
| List - I | List - II | ||
|---|---|---|---|
| (A) | Metacentric chromosome | (I) | Chromosome has a terminal centromere |
| (B) | Sub-metacentric chromosome | (II) | Middle centromere forming two equal arms of chromosome |
| (C) | Acrocentric chromosome | (III) | Centromere is slightly away from the middle of chromosome resulting into two unequal arms |
| (D) | Telocentric chromosome | (IV) | Centromere is situated close to its end forming one extremely short and one very long arm |
Choose the correct answer from the options given below:
- AA-II, B-I, C-IV, D-III
- BA-IV, B-I, C-II, D-III
- CA-I, B-II, C-III, D-IV
- DA-II, B-III, C-IV, D-I
View written solutionFree
Correct answer: D
Here's a breakdown of the chromosome types and their corresponding centromere positions, helping you match the lists correctly:
Understanding Chromosome Structure
Chromosomes are thread-like structures made of DNA that carry genetic information. The centromere is a constricted region on the chromosome that holds sister chromatids (identical copies of DNA) together during cell division. The location of the centromere determines the shape of the chromosome and is used for classification.
Types of Chromosomes
- Metacentric Chromosome (A): The centromere is located in the middle of the chromosome, resulting in two arms of equal length. (II)
- Sub-metacentric Chromosome (B): The centromere is slightly off-center, leading to one arm slightly longer than the other. (III)
- Acrocentric Chromosome (C): The centromere is located close to the end of the chromosome, creating one very short arm and one very long arm. (IV)
- Telocentric Chromosome (D): The centromere is at the very end of the chromosome, resulting in a single, very long arm. (I)
Matching the Lists
Based on the above explanations, the correct match is:
Option D: A-II, B-III, C-IV, D-I
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