Principles of Inheritance and Variation Class 12 Biology| Genetics One Shot |NCERT CBSE NEET
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- เผยแพร่เมื่อ 19 มิ.ย. 2024
- "➡️Free NCERT notes:bit.ly/Class12BiologyPrincipl...
➡️Free NCERT Solutions:bit.ly/Class12BiologyPrincipl...
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Timestamps:
0:00 Introduction
0:57 Heredity
1:37 Heredity vs. Inheritance
3:13 Inherited traits
6:13 Gregor Mendel
6:57 Why Pea plant?
10:42 Mendel’s experiment
12:45 Mendel’s experiment: Conclusion
14:55 Genes
15:55 Alleles
17:53 Phenotypes & Genotype
19:54 Homozygous & Heterozygous Genotypes
20:55 Dominant & Recessive traits
24:53 Dominant & Recessive traits in Pea plant
25:51 Monohybrid cross
30:07 Punnett Square
37:29 Mendel’s Principles of Inheritance
37:43 Law of Dominance
41:49 Law of segregation
43:46 Incomplete Dominance
47:12 Incomplete Dominance:Snapdragon flower
50:54 Incomplete Dominance:Punett Square
54:36 Codominance
57:22 Human ABO blood grouping
1:06:20 Multiple Alleles
1:09:05 Types of Dominance
1:10:42 Inheritance of two genes
1:11:55 Understanding Mendel’s experiment II
1:14:34 Mendel’s observations
1:16:23 Dihybrid Cross: Punnett square
1:22:23 Principle of independent assortment
1:26:11 Recognition of Mendel’s work
1:28:24 Advancements in microscopy
1:29:05 Chromosomes: A quick Recap
1:35:31 Sister Chromatids vs.Homologous chromosomes
1:39:24 Chromosomes during Meiosis
1:40:55 Meiosis:The process
1:48:04 Chromosomal Theory of Inheritance
1:49:29 Thomas Morgan
1:50:16 Why Drosophila?
1:53:09 Morgans’ Experiment I with Drosophila
1:55:16 Morgan’s Experiment I:Conclusion
1:56:10 Morgan's Experiment II
1:57:17 Morgan’s conclusion
2:02:39 Morgan’s Dihybrid cross experiment
2:06:46 Linkage
2:13:14 Dihybrid ratio & Test cross ratio of Linked genes
2:17:32 Dihybrid Crossing in Sweet Pea
2:23:28 What causes Recombination?
2:23:46 Crossing Over
2:25:50 Crossing over 2 linked genes
2:28:13 50% recombination occurrence
2:29:35 Sex determination
2:32:51 Male Heterogamety
2:23:34 Sex-determination
2:34:06 Sex Determination in Humans
2:37:35 What is Mutation?
2:38:32 Cause of Mutations
2:40:01 Types of Mutations
2:40:42 Gene mutations
2:43:21 Chromosome mutations
2:46:20 Genetic Disorders
2:46:41 Pedigree analysis
2:50:17 Types of Genetic disorders
2:51:21 Mendelian disorders: Haemophilia
2:54:02 Haemophilia:Pedigree analysis
2:59:08 Mendelian disorders:Sickle cell anaemia
3:01:34 Sickle cell anaemia
3:08:52 Mendelian disorders:Phenylketonuria
3:10:11 Phenylketonuria
3:11:21 Chromosomal disorders:Down’s Syndrome
3:12:34 Down’s Syndrome: Symptoms
3:12:33 Chromosomal disorders: Klinefelter’s Syndrome
3:13:23 Klinefelter’s Syndrome: Symptoms
3:13:46 Chromosomal disorders: Turner’s Syndrome
3:14:38 Turner’s Syndrome: Symptoms
In this video we will cover:
1. NCERT Solutions Class 12 Principles of Inheritance and Variation Biology
2. NCERT Class 12 Biology Principles of Inheritance and Variation notes
3. Biology Chapter 5 Class 12 Principles of Inheritance and Variation notes
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"
Remember the dominant traits with "GRAVITY"
G-green fruit colour
R-round shape
A-axial flower position
V-violet flower colour
l-inflated pod shape T-tall plant height
Y-yellow seed colour
Bariya
Wahoo great
@@debodeeprout3561 🤗
@@shwetapahadan1513 ❤️
Esi hi easy tricks or bhi ho to bta do dena plz😊
She joined 10 years ago in 2011 and is teaching till now! Hats off to the hard work
You are right
I took science in 2020 batch n I am studying from yt hats off to me n others who is studying from yt😂
Bar
@@BEASTXABHI well bro same here also
@@RAJVEERSINGH-bw1sj all the best bro for exam😂♥️👍🏻...mine is Goa board from 5th april
Who is watching for 2024 exam 😁😁
Me**😢
Me😢
🙋😅
Me
Hn bro ab yd aaya h ki exam aa rha h 12th ka
Pedigree analysis
2:50:17 Types of Genetic disorders
2:51:21 Mendelian disorders: Haemophilia
2:54:02 Haemophilia:Pedigree analysis
2:59:08 Mendelian disorders:Sickle cell anaemia
3:01:34 Sickle cell anaemia
3:08:52 Mendelian disorders:Phenylketonuria
3:10:11 Phenylketonuria
3:11:21 Chromosomal disorders:Down’s Syndrome
3:12:34 Down’s Syndrome: Symptoms
3:12:33 Chromosomal disorders: Klinefelter’s Syndrome
3:13:23 Klinefelter’s Syndrome: Symptoms
3:13:46 Chromosomal disorders: Turner’s Syndrome
3:14:38 Turner’s Syndrome: Symptoms
She is answer to all students how says , "when a single teacher can't teach all subjects then how can a single student learn all subjects.
It's really great 🤩
How she can teach all subjects with such perfection 😃
If This channel will start ENGLISH literature chapters explanation also with similar animations then nobody will search other channel for any major subject
Its a facts😃
@@abhaypanda16 same my class is also 12th B
I completely agree with you! ✌️
@@abhaypanda16 AAaàaaaaasssssssaawaasaaaaaawasssswaaaaawaaaaaaaaaasawwwaaasswwssassssssssaaaasaaaaaasssssssssaaawsewwassawaaaaawawswwwawwawawawwaw
She teaches physics, chemistry , biology and maths.......😮😮......... Your teaching style is superb mam 👍👍👍.... Concept hua crystal clear 🙂🙂🙂
Nobita's teacher
@Sid Avi I think sara hi padhaya h because mne sabhi chapters ki videos nhi dekhi h
Right sis
@Sid Avi sab padhaya h
@@mandleshwar7471so true 😂
Anyone 2025 neet aspirant 👋🏼
We
Me❤
Me
🙋
@@godapraharshitha952hello
Timestamps:
0:00 Introduction
0:57 Heredity
1:37 Heredity vs. Inheritance
3:13 Inherited traits
6:13 Gregor Mendel
6:57 Why Pea plant?
12:45 Mendel's experiment: Conclusion
14:55 Genes
15:55 Alleles
17:53 Phenotypes & Genotype
19:54 Homozygous &Heterozygous Genotypes
20:55 Dominant & Recessive traits
24:53 Dominant & Recessive traits in Pea plant
25:51 Monohybrid cross
30:07Punnett Square
37:29 Mendel's Principles of Inheritance
37:43 Law of Dominance
41:49 Law of segregation
43:46 Incomplete Dominance
47:12 Incomplete Dominance:Snapdragon flower
50:54 Incomplete Dominance:Punett Square
54:36 Codominance
57:22 1:06:20 Multiple Alleles
Human ABO blood grouping
1:09:05 Types of Dominance
1:10:42Inheritance of two genes
1:11:55 Understanding Mendel's experiment II
1:14:34 Mendel's observations
1:16:23 Dihybrid Cross: Punnett square
1:22:23
Principle of independent assortment Recognition of Mendel's work
1:26:11
Advancements in microscopy
1:28:24
1:29:05 Chromosomes: A quick Recap Sister Chromatids vs. Homologous chromosomes
1:35:31
1:39:24 Chromosomes during Meiosis
1:40:55
Meiosis:The process
1:48:04
Chromosomal Theory of Inheritance
1:49:29 Thomas Morgan 1:50:16 Why Drosophila?
1:53:09
Morgans' Experiment I with Drosophila
1:55:16 Morgan's Experiment I:Conclusion
1:56:10
Morgan's Experiment II
1:57:17
Morgan's conclusion
2:02:39 Morgan's Dihybrid cross experiment
2:06:46 Linkage
2:13:14
Dihybrid ratio & Test cross ratio of Linked genes 2:17:32 Dihybrid Crossing in Sweet Pea
2:23:28
What causes Recombination?
2:23:46 Crossing Over
2:25:50 Crossing over 2 linked genes
2:28:13 50% recombination occurrence
Broo this is already given in discription box ...
@@dhanijoshi2482😂😂😂
@@hgbrokengamer394 😂
@@hgbrokengamer394 obviously waste of time 😅
Are bhaiya puri video me yahi kiya h kya😂
Ma'am please start molecular basis of inheritance... It's a bit tougher and the weightage is also high...
Yes mam please
Yes, mam pls try to cover the remaining portions for physics and mathematics and chemistry. As soon as possible .
Before term 1
Yes mam
Yes mam plz before 18
🙂Under Three hours mam covered all topics in detail with concepts......this is not just revision video ,if you are starting chapter right now then you may understand full chapter within three hours and your time also saved(instead of watching 20 hours lectures) + ........ Thanks lot mam for quality content❤❤❤❤
even i have the same question...
Agreed ❤️
Some legends are watching this for 2025 boards 😅
🤚🤚
Any problem will come
Finaly i found a teacher who explained each and every topic very clearly thank you so much😂❤
I love how calmly she teaches❤️❤️ because some TH-cam teachers just shout for no reason at all.
Army💜
Exactly 💯
Remember the dominant traits with GRAVITY 😊
G-Green fruit colour
R- Round seed shape
A-Axial flower position
V-Violet flower colour
I- Inflated pod shape
T-Tall plant height
Y-Yellow seed colour
👍👍👍
Copied
Amazing
Fruit colour yelloe
👌👍👍👍👍👍
Her concepts and particularly her language and expressions are just so clear for anybody to understand. She is the best 👌🏻👌🏻👌🏻
Yes
Remember the dominant traits with--
"GRAVITY"👍:)
G- green fruit colour
R- round shape
A- axial flower position
V- violet flower colour
I- inflated pod shape
T- tall plant shape
Y- yellow seed colour.
Don't copy comments bro🤣
😂😂😂😂😂😂
Mam these topics are left.... Please go through it too...... A humble request 🙏🙏🙏.....
(1) polygenic inheritance
(2) Pleiotropy
(3) Colour blindness
(4) Thalassemia
(5) Chromosomal disorder - aneuploidy , Polyploidy
yes mam
Yes mam plz
It is not in NCERT that's why
@@parasbharambe Ye topics NCERT me hai bro 👍
Sahi hai
12 HOURS TO GO!!!
BEST OF LUCK GUYS....
YOU'RE GOING TO DO GREAT!
Thank u same to u too do well!
Kisa kiya i qualified neet..
Woow that's amazing astagya! ❤️
Congratulations!
@@prashanthbs5595 nmìknnnnnnà
@@johannamarianfinos9781 insta?
I really found the best teacher in my entire education journey the quality videos which you're providing is far better than byjus,... And we're getting such videos for free, we're really lucky to have you
My board exam in Feb,now is dec and i want to finish my syllabus in less time also want to clear every topic,i got best channel for me ♥️
Only by reading this chapter from this channel can I give boards .
I mean will i be able to score good
So what but you have to write in Hindi language 😁
Same story..👍💪
Hii
Hi
Exceptions of dominance law: Co-dominance,Incomplete dominance,
Exception of Segregation law: disjunction of gametes while segregating
Exception of independant assortment law: linkage
Any Boards student here❤
Kis kis ka exam h 19 March ko biology ka
Hm
Yyea
Who i watching this before 4 days before exam 😂😂
Im watching this 2days before exam😅
@@giai3444 same
@@Extra-yb2bd haha...still evolution and MBI are left :)
@@giai3444 Bro I just Did Reproduction and now in Inheritance Tueday Exam 😭
@@Extra-yb2bd tf man...study then...do one thing tryna do the easier chapters first like the unit X and VIII
Such an amazing one shot for the revision..
Hats off to Roshni mam and her team..
And can't believe that Learnohub team is giving this for free ✨✨✨
She actually teaches Physics, chemistry,maths, biology and made our concepts crystal clear.. the Learnohub team is creating revolution in education...
THANK YOU SO MUCH MA'AM AND TEAM LEARNOHUB FOR AMAZING ANIMATION ........THIS WAS SO REQUIRED CHAPTER FOR ME......CONCEPT HUA CRYSTAL CLEAR......TYSM FOR YOUR HARDWORK :)
Bai mam ka naam kya ha
@@vishalnagra9752 Roshni mukherjee
Hii guys is lecture mein kyaa maam ne puraa ncert ko padhaya hai!???
Pp pp po m p ok ok pp pp
L oo o ft no lo poo o ko no p by po by po
Really! Teaching Biology, maths,chemistry,physics along with such presentation requires a lot of hardwork salute to your efforts and hardwork mam👏💐🙏🙏
Thank you ma'am for such a nice one shot video .. all the concepts are crystal clear ...... you are the one of the best teachers in the world who does so much efforts for teaching us !!! Thank you mam
All rounder revered mam, you're really the best teacher ever in India and your goal to teach all the students in free of cost shows your humanity and greatness...🙏🙏🙏
I was the student..
Genetics used to go over my head.
After seeing this vedio. I have got a little confidence that I will do this topic well in the exam....
Concept hua crystal clear .👀👀❣️
Vedio🤣
Hlo Mam
Everything in one video.... thank you so much ma'am for making my concepts Crystal clear❤️❤️✌️
Such a detailed video with each and every topic explained in such a short duration. Thank you so much ma'am for providing these🥰🥰🥰
This is amazing, one teacher teaching all the subjects.
While writing on board she speed up the time of video so that even our second should also not waste🥺 , literally this much effort no one do for free, concepts hue crystal clear thanks mam 👍👍
Wow!! What a session ma'am!♥...No one can make bio more enjoyable than you! It's really an HONOUR to learn from a stupendous teacher like you!! LOT OF RESPECT FROM BOTTOM OF MY HEART!! ♥🙌 (Even haters can't deny how enjoyable your lectures are!!) and thanks team learnhub for such a WONDERFUL animations! #Concepthuacrystalclear!!✨
Welcome for 12th board exam🎉..waste full year without study but during exam we need one short 😂
The way you express and the dedication you have creates the curiosity and eagerness to know in depth of each topic also you provide the deep core contents of each chapter.Also I request you to provide the deepest concepts from each chapter so that watching your video and then revising would be more than enough for exams provide such CONTENTS ...ALL I CAN SAY IS you are mesmerizing and unique from the crowd 💕💕💕🔥🔥
Thank you so much ma'am. You are a relief to us in these critical circumstances. I bow to you ma'am 🙏.
Thats amazing ...what a teacher I don't read NCERT every point fixed in brain ....plz teach full syllabus of bio like that ❤️❤️
She teaches very efficiently actually❤There is no short cut for her❤ nowadays teachers tries to complete the syllabus not more than that❤but for her it is quite different❤❤
Bench of (2023-2024) like Kare ?
Each and everything is clear because u have explained it .you are great 👍👍
She is special because she independently created channel and maintaned to teach PCMB more efficiently tq ma'am lots of love 💕
Thank you mam for you my concepts of this topics are crystal clear now 😊 and from last 2monts it's used to be my biggest backlog
I really love your explanation mam, I was average but increasing up my rank now, all thanks to you, I really found a gem in a face of a teacher
Thank you ma'am for making my concepts cristal clear. Your way of teaching is very good
Video quality, Sound quality,teaching style, perfets notes,awesome concept, all of mindblowing
Roshni ma’am and her videos are roshni of the lives of us students. Thanks a ton ma’am for putting so much effort in creating such extraordinary learning content!! Forever indebted to you. ❤
Mam ur really honest teacher because u know what's students problem and u solve easily that problem 💕💕🙏 really thanks a lot mam
Amazing session mind-blowing your teaching strategy are very unique concept hoa crystal 🔮 clear thank you maam for this amazing session
Mam pura chapter inherit ho gaya . Thanks a lot for such a dashing explanation . You are superb mam
Thank you so much ma'am sach me concept huye crystal clear finally just a week left for my bio exam and i completed my whole syllabus just by watching your videos used to think bio a hard subject but no one can teach bio the way u did hats off to you ma'am ✨✨
Kiska kiska 19 March ko exam hai ....mera mtlb kl 😅
thank you much mam....for your efforts....with the help of your support...we will definetely score high..mam please upload for the moleculer basis chapter too...only you can save us from low scoring
Mam...you are such a great teacher in my life..you always explain the concepts from basic which i most like in your videos...
Please mam support us to completed full syllabus of Ncert biology for 🖤NEET2022🖤
Please mam upload the biology series for NEET ASPIRANTs❤
19 ke liya tayari karne wala like kare
Awesome 😎👍❤
Such a nyc video...
Ncert with some Extra topic cover in a single shot video 👍
After ur session on any topic i feel why I considered that difficult before.
Bt mam honestly u r the hope of all students 🙌👩🏫.
We all praise ur efforts nd want more such videos from u only 😇
Plz upload Ch. 6 video also of bio.
I'm personally waiting for that chapter too 🥺
Same🙃♥️
Thank you ma'am for this amazing explanation of chapter
Ye kon si chapter hai 🤔
Mam app All in one ho. App to sabhi subjects padhati ho for example physics, chemistry, biology . Aur sabke doubts ko crystal confuse kar deti ho .
Jis bacche ko kisi subject me doubt nhi hota hoga use bhi Crystal doubt full bna deti ho .
Well done 👍
Keep doing
ab doubts Crystal clear nhi ❌
Create crystal confused to all the student
But app bacchho ko Gyan de rhi ho besak confuse karke ye bahut accha kaam h.
Who is watching for 2024 exam 🤓
Concept hua crystal clear!! 😍Thank you so much for Amazing lecture!!😍 ma'am, please please complete all the chapters of biology from the term 1 ..humble request to you ma'am!!🙏
We all r blessed to have such a kind of person in our life🥺💜
Mam you are really fabulous I didn't understand this chapter but after watching this video my concepts are crystal clear thanks a lot mam ♥️⚡
Best of best Chanel 🎯 ❤words can't explain how much this helpful for us😭. Thank you so must ma'am 🙏💌
Full concepts are clear mam , thank you so much for it 🙏🏻🙏🏻🙏🏻
Justtt wow... Mam... Totally got cleared the whole chapter... You're just awesome... Thank you so much Mam... For providing such valuable videos... With free of cost ❤.. Love you mam... Love from West Bengal ❤
Thankyou ma'am for giving this type of understandable study to the students of india and all state board children,s so they can make their marksheet boost with your knowledge 🎉🎉🎉🎉🎉🎉
Superb ..mam mere bhi concept hua crystal and clear you are a good teacher of biology ❤❤
Thanks a lot ma'am for your each & every class....please make video on molecular basis of inheritance also .
i m in 12th rn learning from u from class 10th i am not taking any tutions or coaching nothing and i feel low out that i will be at the end coz all others are just taking the extra classes i thought no one is there for me to make my concepts crystal clear but god sent an angles named roshni mam before starting a chapter with you i m blanked and after watching it i m having crystal clear concepts but sometimes some doubts are still left but i check it from school notes,ncert and all the souces a student from middle class family have i m very very very thankful to u mam from the depth of my heart
You learn the bhai ki padai channel
@@SanjayKumar-in9mv plll
Glad to see your teaching skills...I have no words to describe your teaching makes concepts more easier to understand....
Also this one shot series save a lot of time....this lecture had covered all topics...
Really worth it in both quantity and quality....
Hat's off to you mam...for bringing this lecture for us
Enjoyed the lecture and concept hua crystal clear 🔮
This will be the no 1 online teaching institute in future👍👍
Since I am a student not a liar so I am telling you..
Rishab sir & MD sir are real king of biology
But for repeating their notes your are the best one..🤗
Your study style is very understanding thank you mam understand for esay way😊😊😊
Concepts crystal clear....thank you so much mam...😊😊🙏
On 27 September 2022 my half Yearly Exam my doubts related to this chapter was crystal 🔮 clear really this channel is very very nice this channel help all without taking any coaching and tuition etc. Thanks roshni mam you are a god gifted for us 🥰 you are brilliant and you are great 👍👍,🙏🏻
Best of luck dear🤞🤞
Thnku so much mam... plz upload the next chapter "Molecular basis of inheritance "🥺🥺
How much get your result in 2puc
Mujhe bhi bhej dena
Hello ba
Concepts hue crystal clear!😊
Mam thank you for clearing our concept by making us visualization of concept by diagram and best examples
Mam how do you do this ....ap all subjects itne ache se explain karte ho ..... This video is excellent for principal of inheritance and variation best explanation excellent
Mam apne hamse promise kiya tha ap biology ke sare chapters upload karoge 🥺🥺 And ab baki chapters ❓❓❓🥺
Concept hua crystal 🔮 clear 😁... Thankyou so much mam ❤
All the best for tomorrow guyss❤❤
S2u broo
Mam you are really doing a great job 👍👍
But please mam ek pyq series jee/neet wale baccho ke liye bhi lao jisme aap past ten years ke most expected questions karwana. Plz mam i hope you will understand my text🥺
Are bhai sirf neet na ki jee 😄
@@Aryan._Singh bhai mere dono hai 😂
Me PCMB student hun
12 HOURS TO GO!!!
BEST OF KLUCK GUYS.....
YOU'RE GOING TO DO GREAT!
Excellent explanation of the chapter in very simple language
Thank u mam for clearing my all the doubts about this chapter ❤❤❤
concept is crystal clear ............ thanku sooooo much mam
Concept is crystal clear ✨
Thank you so much mam,you are so wonderful,I literally love the way you teach ❤️
Thanks for this video mam I'm a college student and your video helped me a lot during revision 🙏🏻😇
Thanks mam you've helped me alot in understanding these topics 😅
ma'am uu are absolutely a very outstanding teacher ..no one can teach like u....since 9th class i am watching your videos and now i am in 12th and i am fully dependent on you i watch your lectures and it make my concepts crystal clear 🥰
Thank you soo much ma'am.... U explained it very well.... I tried doing mcq after watching this and i gave maximum correct answer. 😊
Hi Roshini Mam !
After seeing this video I was amazed to say this video is really helpful and you explained each topic very well
I just say crystal cleared 😍
Plz mam Molecular Basis of Inheritance ka one Shot video Kab bana Rahe ho aap?
You are just amazing mam..❤❤👌👌 concept hua crystal clear 🙂🙂and thank you so much mam for this helpful video⭐⭐⭐⭐⭐
♥️💬
Thank you very much ...all concepts crystal clear in a very short time 😊
Such a great teacher who is actually doing hard work for students and providing best lecture absolutely free
Mam pls term 2 ka syllabus jaldi complete karwa dijiye ga...before feb and march...so that we get a plenty of time to revise..
Bhai plz term 2 ka syallbus bataoo
Are bhai ......
Bhai pehle 1 term to complete kar
@@ashwanichaudhary5503 tujhai term 1 mai saarai subject mai pakka 40/40 aayai gai
@@ashwanichaudhary5503 🙄
This video helps me to revise genetics 🧬 it makes my concept clear and stong too
You are brillient mam😊
You are started in different way & junior concept ❤