The Question is from neet-botany cell-biology , and it was created by the author NISHANTH

Question

The structure formed by DNA wrapped around histone proteins is called:

NISHANTH · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Cell Biology, specifically the structure of chromosomes.
 **Related Topics**: DNA packaging, histones, nucleosomes, chromosomes, chromatin remodeling.
 **Prerequisites**: Basic understanding of DNA structure and function.
## SOLUTION PATHWAY
**Given Information**:
  The question describes DNA wrapped around histone proteins.
**Method & Steps**:
 1. Identify the structure formed by DNA wrapping around histone proteins.
  Reasoning: DNA is a very long molecule and needs to be tightly packed to fit inside the nucleus of a cell.  Histone proteins are involved in this packaging process.
  Formula/Rule:  There is no specific formula, but understanding the hierarchical organization of DNA is key.
 2. Recall the terminology related to DNA packaging.
  Working:  The fundamental unit of DNA packaging is the nucleosome, which consists of DNA wrapped around a core of histone proteins.  Many nucleosomes are further organized into a more compact structure called chromatin.
  Key Point: Chromatin is the general term for the complex of DNA and proteins that make up chromosomes.
 3. Determine the correct term for the structure.
  Result: Chromatin is the structure formed by DNA wrapped around histone proteins.
  Verification: The other options are incorrect because chromosomes are the condensed form of chromatin visible during cell division, chromatids are the two identical copies of a chromosome, and the centromere is a constricted region of the chromosome.
 ## OPTION ANALYSIS
A :x: Chromosome is a highly condensed structure formed from chromatin, visible during cell division.
B :x: A chromatid is one of the two identical copies of a chromosome.
C ✓: Chromatin is the complex of DNA and proteins (including histones) that make up chromosomes.  It's the less condensed form of DNA found during interphase.
D :x: The centromere is a specific region of a chromosome.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Confusing chromatin with chromosomes: Remember that chromatin is the less condensed form of DNA, and chromosomes are the highly condensed form.
  2.Failing to understand the role of histones: Histones are crucial proteins that help organize and compact DNA.
 **Quick Tips**:
  1.Think of chromatin as the 'beads on a string' structure, where the beads are nucleosomes (DNA wrapped around histones).
  2.Remember the hierarchy: DNA -> nucleosome -> chromatin -> chromosome

NISHANTH · Answer

Chromosome

NISHANTH · Answer

Chromatid

NISHANTH · Answer

The correct Option is "Chromatin"

NISHANTH · Answer

Centromere

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