Types of DNA in हिन्दी | Differences & Structure | B.Sc. & M.Sc. Zoology

In this video, we will study the different types of DNA in detail, focusing on A-DNA, B-DNA, C-DNA, D-DNA, E-DNA, and Z-DNA. Among these, B-DNA is the most common and biologically important form, but exams often ask differences between A, B, and Z DNA.

0:00 – Types of DNA Introduction
0:21 – What are the different types of DNA?
0:30 – B-DNA structure and features (Watson & Crick model)
6:00 – A-DNA structure and features
8:12 – Z-DNA structure, features and importance in gene regulation
10:20 – C-DNA explained (formation & features)
12:01 – D-DNA explained (rare form)
13:49 – E-DNA explained (methylation & bromination)
14:47 – Difference between A-DNA, B-DNA, and Z-DNA (tabular comparison)
17:28 – Summary and exam notes

We’ll cover:
Structure and features of B-DNA (Watson & Crick model)
Alternative helical forms: A-DNA, Z-DNA, C-DNA, D-DNA, and E-DNA
Differences in helix handedness, base pairs per turn, rise, pitch, diameter, grooves
Special notes on gene regulation and rare DNA forms
Tabular comparison of A, B, and Z DNA (most important for exams)
This topic is highly important for B.Sc. Zoology, M.Sc. Zoology, NEET, CSIR-NET, GATE, and ICAR exams. Watch till the end for complete clarity and revision-friendly notes.

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