DNA Structure and Function in Hindi | Molecular Basis of Inheritance Part 1 | Biology Class 12/NEET

DNA (deoxyribonucleic acid) is a self-replicating material which is present in all living organisms and it acts as the carrier of genetic information. Contact us for purchasing complete syllabus notes : [email protected] Class XII & XI (Complete syllabus notes) – Rs. 1400 Class XII (Complete syllabus notes) – Rs. 1000 Class XI (Complete syllabus notes) – Rs. 1000 If you desire to donate to this channel for its growth in offering simple & quality education, please follow instamojo link: www.instamojo.com/@bhavnasingh Please know that donations are never expected; only appreciated! Thank you ❤ Find answers to questions asked in the video: Answer 1: 2.244 m Answer 2: 40,00,000 base pairs You might find these videos useful: Structure of DNA (Part 1)    • DNA Structure and Function in Hindi |...   Nucleosome (Part 2)    • Nucleosome (Packaging of DNA Helix) |...   Transforming Principle & the Hershey-Chase Experiment (Part 3)    • Transforming Principle & Hershey Chas...   RNA World Hypothesis (Part 4)    • RNA World Hypothesis | Molecular Basi...   What is Gene (Part 5)    • Gene Structure (Euchromatin and Heter...   Meselson & Stahl’s Experiment (Part 6)    • Meselson & Stahl’S Experiment | Semic...   DNA Replication (Part 7)    • DNA Replication (Hindi) | Molecular B...   Transcription (Part 8)    • Transcription | Molecular Basis of In...   Post Transcriptional Modifications (Part 9)    • RNA Splicing / RNA Processing / Post ...   Genetic Code (Part 10)    • Genetic Code/Genetic Codon | Molecula...   Translation (Part 11)    • RNA Translation |  Translation Proces...   Lac Operon (Part 12)    • Lac Operon | Molecular Basis of Inher...   DNA Fingerprinting (Part 13)    • DNA Fingerprinting | Molecular Basis ...   Contents of the video: Nucleotide – 00:05 Nucleoside vs. Nucleotide - 2:36 Phosphodiester Bond – 4:34 Polynucleotide Chain – 6:08 Simplified Ladder Structure of ds- DNA & its Coiling – 6:55 Structure of DNA - 9:28 Scholarly Biology presents ‘Structure of DNA’ in very simple language to help students in the best possible way.  DNA is made up of two polynucleotide chains, where the backbone is made up of sugar and phosphate groups and the nitrogenous bases project towards the center.  The two strands have anti-parallel polarity i.e., one chain has a 5’→ 3’ polarity while the other has 3’→ 5’ polarity.  There is complimentary base pairing between the two strands of DNA i.e., adenine forms two hydrogen bonds with thymine of the opposite strand whereas guanine is bonded with cytosine with three H-bonds.  The diameter of the strand is 20 Å.  The distance between the base pairs in a helix is 0.34 nm and one turn contains ten base pairs. Thus length of one turn is 3.4 nm.  Due to spiral twisting, the helix has two types of alternate grooves: major (22 Å) and minor (12 Å). Note: Length of DNA is defined as number of base pairs (pair of nucleotides). The number of base pairs in a haploid content of a particular species is fixed. Thus this is the characteristic of an organism. Scholarly Biology…empowering students with competitive aptitude. #Genetics #BiologyClass12 #ScholarlyBiology

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