chromatin packaging

CHROMATIN -EUCHROMATIN AND HETEROCHROMATIN

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Heterochromatin Function Types of Heterochromatin Constitutive heterochromatin Facultative heterochromatin Euchromatin Structure Appearance Function 🔹 1. Who first defined heterochromatin in 1928? A. WatsonB. Heitz ✅C. CrickD. Morgan🧠 Explanation: Heitz first described heterochromatin based on its staining properties. 🔹 2. Euchromatin is characterized by: A. Dense stainingB. Peripheral localizationC. Loose DNA packing ✅D. Inactive genes🧠 Explanation: … Read more

Nucleosome

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Nucleosome Chromatin    → Nucleosomal monomers Containing the spacer DNA (160 base pairs)    →    Core nucleosomes (140 base pairs) →     Subnucleosomal particles 🔹 PART A: Basic Concept of Nucleosome Q1. The term “nucleosome” was first coined by:A. Olius and Woodcock✅ B. Oudet et al.C. Watson and CrickD. Hershey and Chase Q2. … Read more

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