Chemical Composition & Organization of Chromosomes | Class 11 Biology | lec 2

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In this lecture, I explain the Chemical Composition, Organization, and Ultra Structure of Chromosomes in detail — an essential topic for Class 11 Biology, MDCAT, and NEET exam preparation.
👉 Make sure to also watch the previous lecture on Structure of Chromosomes & Components of Chromosome:
   • Видео  
⏱ Timestamps:
0:00 - Chemical composition of chromosomes
2:51 - How human chromosome DNA fits inside the nucleus?
3:29 - Ultra structure of chromosomes
3:40 - Nucleosome
5:15 - Detailed structure of nucleosome
8:24 - Linker DNA
9:42 - Chromatin fiber
10:34 - Euchromatin & Heterochromatin
11:44 - Chromatid
13:08 - Components of Chromosome (sister chromatids, centromere, kinetochore, secondary constriction, satellite, telomere)
📌 What You'll Learn in This Video:
1: DNA, RNA, histones & non-histone proteins in chromosome composition
2: How DNA is packed inside the nucleus
3: Nucleosome structure explained with clarity
4: Chromatin fiber organization (Euchromatin vs Heterochromatin)
5: Key structural components of a chromosome (centromere, kinetochore, telomere, etc.)
Board exam and entry test-focused explanations
This video provides clear, exam-oriented learning for Class 11 students, NEET, and MDCAT aspirants.
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