NEET > Biology Class 12 > Introduction to DNA & RNA
Introduction to DNA & RNA Video Lecture - Biology Class 12 - NEET
|
157 videos|398 docs|239 tests
|
FAQs on Introduction to DNA & RNA Video Lecture - Biology Class 12 - NEET
| 1. What is DNA and RNA? |  |
Ans. DNA (deoxyribonucleic acid) and RNA (ribonucleic acid) are nucleic acids that play crucial roles in the storage and transmission of genetic information in living organisms. DNA is a double-stranded molecule that contains the genetic instructions for the development, functioning, growth, and reproduction of all known organisms. RNA, on the other hand, is a single-stranded molecule that assists in protein synthesis by transferring the genetic information from DNA to ribosomes.
| 2. How do DNA and RNA differ from each other? | |
Ans. DNA and RNA differ in several aspects. Firstly, DNA is double-stranded, while RNA is single-stranded. Secondly, DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. Additionally, DNA uses the nitrogenous bases adenine (A), thymine (T), cytosine (C), and guanine (G), whereas RNA uses adenine (A), uracil (U), cytosine (C), and guanine (G). Lastly, DNA is located in the nucleus of a cell, while RNA can be found in the nucleus as well as in the cytoplasm.
| 3. What are the functions of DNA and RNA? | |
Ans. The main function of DNA is to store and transmit genetic information. It contains the instructions for the formation of proteins and other molecules necessary for the development and functioning of an organism. RNA, on the other hand, has various roles. Messenger RNA (mRNA) carries the genetic information from DNA to ribosomes for protein synthesis. Transfer RNA (tRNA) brings amino acids to the ribosomes during protein synthesis. Ribosomal RNA (rRNA) is a component of ribosomes, where protein synthesis occurs.
| 4. How is DNA replicated? | |
Ans. DNA replication is a process in which a DNA molecule is copied to produce two identical DNA molecules. It occurs during the interphase stage of the cell cycle. The process involves the unwinding of the DNA double helix, separation of the strands by the enzyme helicase, and the synthesis of new complementary strands using DNA polymerase. Each resulting DNA molecule consists of one original strand and one newly synthesized strand, a process known as semi-conservative replication.
| 5. Can DNA be used for identification purposes? | |
Ans. Yes, DNA can be used for identification purposes. DNA fingerprinting, also known as DNA profiling, is a technique that analyzes specific regions of an individual's DNA to create a unique genetic profile. This profile can be used to establish biological relationships, determine the presence of genetic disorders, and identify individuals in forensic investigations. DNA identification is highly accurate and is widely used in criminal investigations, paternity testing, and establishing ancestral connections.
About this Video
|
4.3K Views |
|
4.83/5 Rating |
|
Sushil Kumar |
Video Description: Introduction to DNA & RNA for NEET 2023 is part of Biology Class 12 preparation.
The notes and questions for Introduction to DNA & RNA have been prepared according to the NEET exam syllabus.
Information about Introduction to DNA & RNA covers all important topics for NEET 2023 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Introduction to DNA & RNA.
Introduction of Introduction to DNA & RNA in English is available as part of our Biology Class 12 for NEET & Introduction to DNA & RNA in
Hindi for Biology Class 12 course. Download more important topics related with notes, lectures and mock test series for
NEET Exam by signing up for free.
Description
Video Lecture & Questions for Introduction to DNA & RNA Video Lecture | Biology Class 12 - NEET - NEET full syllabus preparation | Free video for NEET exam to prepare for Biology Class 12.
Information about Introduction to DNA & RNA
Here you can find the meaning of Introduction to DNA & RNA defined & explained in the simplest way possible.
Besides explaining types of Introduction to DNA & RNA theory, EduRev gives you an ample number of questions to practice Introduction to DNA & RNA tests,
examples and also practice NEET tests.
|
157 videos|398 docs|239 tests
|
Timeline
| 01:30 | Nucleic Acids |
| 01:41 | DNA |
| 01:53 | Polymers |
| 02:12 | Three Ingredients |
| 03:45 | Base Pairs |
| 04:13 | Base Sequences |
| 05:07 | Pop Quiz |
| 05:36 | RNA |
| 05:43 | Three Differences from DNA |
| 06:16 | Biolo-graphy |
| 08:49 | Replication |
| 09:22 | Helicase & Unzipping |
| 09:38 | Leading Str& |
| 10:08 | DNA Polymerase |
| 10:24 | RNA Primase |
| 10:46 | Lagging Str& |
| 11:07 | Okazaki Fragments |
| 11:47 | DNA Ligase |
More
|
|
|
Explore Courses for NEET exam
|
|
How to Prepare for NEET
Read our guide to prepare for NEET which is created by Toppers & the best Teachers
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Download free EduRev App
Track your progress, build streaks, highlight & save important lessons and more!
Related Searches
study material
,shortcuts and tricks
,Extra Questions
,Important questions
,Free
,Previous Year Questions with Solutions
,Semester Notes
,MCQs
,past year papers
,ppt
,mock tests for examination
,Objective type Questions
,Viva Questions
,Summary
,Introduction to DNA & RNA Video Lecture | Biology Class 12 - NEET
,Sample Paper
,Introduction to DNA & RNA Video Lecture | Biology Class 12 - NEET
,practice quizzes
,Introduction to DNA & RNA Video Lecture | Biology Class 12 - NEET
,Exam
,video lectures
,
Study Introduction to DNA & RNA on the App
Students of NEET can study Introduction to DNA & RNA alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Introduction to DNA & RNA,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Introduction to DNA & RNA is prepared as per the latest NEET syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup
