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Genes, DNA & chromosomes | Heredity & Evolution | Biology | Khan Academy 

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Let's learn what genes, DNA & chromosomes are
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Khan Academy is a nonprofit organization with the mission of providing free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Created by Mahesh Shenoy

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5 авг 2019

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Комментарии : 145   
@vaishalisathe3715
@vaishalisathe3715 3 года назад
Look at that small kid who has changed my life ! THANKS LOT SIR
@ekshupradeep8462
@ekshupradeep8462 3 года назад
ikr 😂
@mallutravelersupport7240
@mallutravelersupport7240 3 года назад
Ya😂😂😂😭😭😭😘😘😘
@benYaakov
@benYaakov 3 года назад
Yes
@onaisnadeem
@onaisnadeem 3 года назад
Simp
@eshan.2539
@eshan.2539 3 года назад
@@onaisnadeem huh?
@darshananath6806
@darshananath6806 2 года назад
YOU ARE LITERALLY A SAVIOUR! THESE ARE SO MUCH COMPLICATEDLY WRITTEN IN OUR BOOKS AND YOU JUST EXPLAINED IT IN A FAIRLY UNDERSTANDABLE MANNER IN JUST 12 MIN! THANKS, A LOT, SIR JI
@user-kx5bu4is8f
@user-kx5bu4is8f 4 месяца назад
CRYING SCREAMIMG THROWING UP, THABKYOU SIR SO SO MUCH
@Cellate
@Cellate 6 месяцев назад
DNA : DNA is a thread like structure present inside the nucleus that contains instructions to make an organism (and all its parts incluing all the various cells) and its characteristic features. Chromosome : Long strands of DNA coiled up in a compact form. Total chromosomes : 46 chromosomes in total (constituting 23 from male parent and 23 from female parent) Gene: Specific parts of DNA that contain instructions to make a specific protein. Variation is the most important advantage of sexual reproduction over asexual. 12:28 Enjoyed the lecture very much 😊
@kanikadahiya120
@kanikadahiya120 2 года назад
HOMEWORK :- 📌 D.N.A is a chemical molecule which carries traits in coded form. These are found in the nucleus of the cell. 📌 Chromosomes are long thread like coiled up D.N.A. which contains hereditary information in the form of gene. 📌 Human cells have 23 pairs of chromosomes OR total 46 chromosomes. 📌 Genes are the part of chronological which controls a specific biological function. 📌 Main advantages of sexual reproduction over asexual are :- • In sexual reproduction there are two parents involved , due to this the child got two types of DNA , which makes the offspring unique. • In sexual reproduction , there are high chances of variation which makes life of the species more existable.
@mahirapmanlabanlangmixvlog
@mahirapmanlabanlangmixvlog 2 года назад
Thank u!!! I was having a hard time finding suitable words to answer those questions.
@c.mayankkumarjain5378
@c.mayankkumarjain5378 5 месяцев назад
,🧖
@bobbetts4735
@bobbetts4735 Год назад
Excellent video and tuition. As a curious 78 year old found your explanation very clear and easy to understand. Thankyou.
@GaneshKumar-lp9pw
@GaneshKumar-lp9pw 3 года назад
I am really Lucky to found this underrated channel 🤗..
@bksarita6120
@bksarita6120 2 года назад
This is the channel who explain everything very beautifully ... thankyou
@heenakousar1000
@heenakousar1000 3 года назад
just wanna thank you by heart. finally, ended up clearing my all doubts. :)
@snehasalunkhe166
@snehasalunkhe166 3 года назад
I watched all the videos on RU-vid of this topic but the only one by whom I understood the concept was you sir thanks a lot lot and lot sir❤️❤️🙏
@bholashankarprasad9838
@bholashankarprasad9838 3 года назад
U look so cute in ur childhood ....owwww❤️thnx lot sir for such a great explanation nd u hve got such a soothing nd pleasent voice.....really amazing 👍
@KUT3684
@KUT3684 5 месяцев назад
The everbest teacher i have ever met hats off sir
@krishnamahajan9496
@krishnamahajan9496 3 года назад
thank you sir , great explanation. i understood everything
@shampamannan1869
@shampamannan1869 3 года назад
Good Job!! Thanks
@samriddhgupta2006
@samriddhgupta2006 2 года назад
Oh man ! You were of a great help for me .. ..🤗🤗🤟thanks a lot.
@ehannaseer7085
@ehannaseer7085 3 года назад
Thank you so much sir.. You have helped me a lot ❤️
@anu_arii
@anu_arii 3 года назад
Great ! Thanks a lot 👍👍😊
@languageandmana9255
@languageandmana9255 6 месяцев назад
Amazing video! Thank you
@SeemaSingh-oi6ry
@SeemaSingh-oi6ry 3 года назад
The explanation is superb sir You are a very good teacher
@princeshaufiku4975
@princeshaufiku4975 2 года назад
Thank you! God bless you 💕
@AvineshDisen
@AvineshDisen 3 года назад
THANKS SIR 🙏
@samarjaiswal4115
@samarjaiswal4115 4 года назад
Thanks sir, this is the best explanation I have ever found. You are absolutely unique at explaining such concepts. Thank a lot 😻😻😻👌👍
@barbarazhang7961
@barbarazhang7961 4 года назад
Amazing teaching! the best one I got ! very clear and easy to understand! Thank you!
@kaushaljain5999
@kaushaljain5999 3 года назад
Things is making easier🧠
@gsharada2910
@gsharada2910 3 года назад
Super sir , 🤗🤗🤗🤩🤩 plz make other chapters also .... Plz sir plz
@alkashendge9314
@alkashendge9314 4 года назад
Your voice is so cute..😇😇...your teaching is incridible...keep it yup sir😎😎😎😎😊😊😊😊😇😇😇
@elltaaraya5303
@elltaaraya5303 6 месяцев назад
Thanks it is so complicated in book
@nanditasharma3527
@nanditasharma3527 2 года назад
Tysm❤️
@wareeshajan
@wareeshajan Год назад
Amazing 👏
@soumil8988
@soumil8988 4 года назад
I totally concur with your ideas!
@pushkarahir4002
@pushkarahir4002 3 года назад
hey!!! i m on your website ... I even learn from there ........... & who else on the webste ..like!!!
@sreejas3503
@sreejas3503 3 года назад
The app takes so much internet. Can't adjust video quality
@onaisnadeem
@onaisnadeem 3 года назад
Your brain is so small
@shreyanshtalks9276
@shreyanshtalks9276 2 года назад
Thx sir
@harendrakumarsingh8640
@harendrakumarsingh8640 5 месяцев назад
congrats!🎉 100k views🎉🎉
@shauryaverma2705
@shauryaverma2705 2 года назад
Best explanation of this topic 🔥
@aaravsharma1824
@aaravsharma1824 2 года назад
Nomoskar 🙇
@amisharath8058
@amisharath8058 3 месяца назад
Thank u so much sir
@harshkumar2473
@harshkumar2473 Год назад
Sir u deserve more than millions of subscriber
@hydraotaku2607
@hydraotaku2607 3 года назад
Nice video bro
@a_random_atom
@a_random_atom 6 месяцев назад
Oh my god.... I've spent 2 hrs trying to figure out tge difference b/w genes.. Chromosomes.. Dna..and not a single person mentioned that dna is what's spread out into 23 strands which are called chromosomes.... I'm so glad i came across this video!!!!! THANKYOU
@unaninadelmundo
@unaninadelmundo 3 месяца назад
I studied this for months and couldn't understand why one trait dominates the other... But watching this video one day before board exam helped me understand the concept ☺️✨👏👏👏
@lightpearl1495
@lightpearl1495 3 месяца назад
Hey buddy I'm watching one day before the exam too 💀
@kaberichakraborty3669
@kaberichakraborty3669 3 месяца назад
​@@lightpearl1495lol im watching this in exam hall💀💀🤡
@geetugupta7244
@geetugupta7244 Год назад
How are you so good at Biology and Physics altogether, such an interesting combo of subjects, right?.....cuz usually non med students are good at Phy and Math, and med students at Bio and Chem...lol!
@saubhagyawatitiwari7831
@saubhagyawatitiwari7831 3 года назад
which software do you uze ?
@shivajikadam4424
@shivajikadam4424 3 года назад
Your voice is very nice 👌 👏
@NirajKumar-ku6pq
@NirajKumar-ku6pq 3 года назад
Wanna see u live....how many of u support...hit a like
@franciscokawiriza1958
@franciscokawiriza1958 Год назад
nice
@sajdaahmad6761
@sajdaahmad6761 3 года назад
Nobody: Me: saw the childhood picture of mahesh sir quickly ran to comment sessions which is not ordinary because I don't come to comment section very often
@mallutravelersupport7240
@mallutravelersupport7240 3 года назад
So your name is Mahesh ??? Sir???
@SoniKumari-zy7pr
@SoniKumari-zy7pr 3 года назад
❤️
@jahidalislam5436
@jahidalislam5436 4 года назад
Thanks
@soumil8988
@soumil8988 4 года назад
You are an amazing teacher. Among the 0.1% of the world, certainly! Thank you so much for the mirifical video
@minssharma9841
@minssharma9841 6 месяцев назад
YEAHHH THIS DUDE SAVED MA LIFE 😂😂
@adarshhalabhavi6631
@adarshhalabhavi6631 2 года назад
Sir, you look nice in that photo👌👌👌
@rohitrao594
@rohitrao594 3 года назад
Sir you are too much cute in your child hood
@lakshmanvajjakeshavula5380
@lakshmanvajjakeshavula5380 3 года назад
Thank you sir
@bhavnapandaxiie7455
@bhavnapandaxiie7455 4 года назад
Thanx a lot sir!!!
@geetugupta7244
@geetugupta7244 Год назад
4:46 Sounded like ठीक है! Lol🤣
@neemagupta9566
@neemagupta9566 4 года назад
I am not able to express that how amazing you explain
@devakashv4702
@devakashv4702 3 года назад
I wonder what app did he use to write and teach?
@msthetechguy
@msthetechguy 2 года назад
Me Too🤔🤔
@nidhipardhi5432
@nidhipardhi5432 3 года назад
Sir r u foreign return or what??..either may b you grown in abroad or may studied their... whatever it will b you hv fabulous teaching skills..your accent yout fluency with transparency in topic...I loved it all..sir can you please share your name
@spacegirl6608
@spacegirl6608 3 года назад
Mahesh sir
@spacegirl6608
@spacegirl6608 3 года назад
I am not sure but I saw a comment when someone said his name is Mahesh!
@spacegirl6608
@spacegirl6608 3 года назад
1:54 look he said his name: "how to build Mahesh"
@GaneshKumar-lp9pw
@GaneshKumar-lp9pw 3 года назад
His name is Mahesh shenoy..
@rameshsoni3907
@rameshsoni3907 3 года назад
Who want to see this sir
@srinivasulunarayanadas6547
@srinivasulunarayanadas6547 3 года назад
mee
@badmavebushini6618
@badmavebushini6618 3 года назад
Sir thank you so much
@VG__
@VG__ 2 года назад
7:20 10:00
@palak6981
@palak6981 4 года назад
How cute u r!😊
@harmeetshergill5801
@harmeetshergill5801 3 года назад
Ha
@jatt8505
@jatt8505 3 года назад
😎
@harmeetshergill5801
@harmeetshergill5801 3 года назад
Hlo😎kive
@harmeetshergill5801
@harmeetshergill5801 3 года назад
Shergill saab
@usharathore3074
@usharathore3074 3 года назад
U are very cute sir
@keerthiarts4802
@keerthiarts4802 3 года назад
Pramoth op
@devakashv4702
@devakashv4702 3 года назад
3:55 What will happen if human and dog DNA get mixed up in a creature?
@shaunabraham3299
@shaunabraham3299 Год назад
It will become a b!ch
@shaunabraham3299
@shaunabraham3299 Год назад
Well you could imagine something but pratically it won't be possible their genomes are different not only thsf it wont make past a single cell
@geetugupta7244
@geetugupta7244 Год назад
4:00 It's funny cuz we prefer the term pups over dog babies🐶😄
@mallutravelersupport7240
@mallutravelersupport7240 3 года назад
>3
@nihal5016
@nihal5016 3 года назад
hi Machane Mallu an alle
@thecommentdoggo9271
@thecommentdoggo9271 4 года назад
First!
@achievers415
@achievers415 3 года назад
nice vid sir.......realy great
@iniyavan9258
@iniyavan9258 Год назад
Sir from one sperm of father a 23 DNA STANDS will come aa into thier children body? Pls reply
@sindhum6624
@sindhum6624 3 года назад
Thank you very much Sir
@jitendraindore3022
@jitendraindore3022 4 года назад
Sir please make a video in Hindi
@pradeepgupta628
@pradeepgupta628 4 года назад
Khan academy India- hindi medium
@pushkarahir4002
@pushkarahir4002 3 года назад
check out there hindi channel - Khan academy India- hindi
@abdullahshahakhtar5014
@abdullahshahakhtar5014 4 года назад
Thanks for biology I’m a teacher
@arpitachouchury9645
@arpitachouchury9645 2 года назад
3:13 this part just doesn't sounds right
@amazingfacts-ne4ec
@amazingfacts-ne4ec 2 года назад
Hlo
@srustirajmishra6911
@srustirajmishra6911 3 года назад
Very good explaination sir
@hiddentalent4605
@hiddentalent4605 4 года назад
Soo cute voice
@GnZia-333
@GnZia-333 6 месяцев назад
Sir App 10 ki starting mein kyu nhi mile 😩
@ladallaprashanthi40601
@ladallaprashanthi40601 2 года назад
Bachpan ka...... Bhul nahi jana re 😅
@ipeopleume
@ipeopleume 6 месяцев назад
* dna is the genetic material of an organism. it acts like an instruction manual to create a particular organism. it is found in the nucleus. *chromosomes are the condensly coiled up versions of dna. * human cells have 46 total amount of chromosomes *genes are portions of dna which contain instructions to build a protein. *sexual reproduction unique organisms are formed( as there as Dna's of mother and father), more number of variations are present which help in survival of species.
@reaganbabb7190
@reaganbabb7190 4 года назад
its the genes man
@prrrachi
@prrrachi 3 года назад
what is your name sir ps : you were cute
@prrrachi
@prrrachi 3 года назад
osowa bangtan sonyeondan imbinida lmao
@lampunguba7996
@lampunguba7996 2 года назад
If snakes are asexual the how do the male snakes able to fulfill the sex deserve? Is there a case of masturbation in snake case?
@harmeetshergill5801
@harmeetshergill5801 3 года назад
👌 😎🤩🙄😌👴👴👴👴😀
@shivamkadam4183
@shivamkadam4183 4 года назад
Hey! Where is RAM..
@priyansurout215
@priyansurout215 3 года назад
In computer cpu
@sanskritisarraf
@sanskritisarraf 3 года назад
@@priyansurout215lol 😂😂😂
@avipj_17
@avipj_17 3 года назад
sir are you indian ?????
@gamingbarkarar5536
@gamingbarkarar5536 3 года назад
Yesssss
@gamingbarkarar5536
@gamingbarkarar5536 3 года назад
@@rashmisahu7130 ohh...ok
@jeninnemer2483
@jeninnemer2483 3 года назад
YES
@shudhashilbarua1178
@shudhashilbarua1178 2 года назад
Hey brother please make your information delivery duration condensed..boring approach of imparting
@akshajg6247
@akshajg6247 4 года назад
u said that when there is a colourless pigment eye turns blue due to scattering of light.. then at sunset y wont the blue eyes turn red??
@vinaybagh2045
@vinaybagh2045 3 года назад
I too want to know
@pushkarahir4002
@pushkarahir4002 3 года назад
hey!! i does but sometimes..... & also some times the red colour mixes with blue and give you some different colour . that why sunsets are very bueatiful, indeed!!
@akshajg6247
@akshajg6247 3 года назад
@@pushkarahir4002 I'm sry I did not get u... I think ur talking about sunsets... My question was bout the eye
@pushkarahir4002
@pushkarahir4002 3 года назад
@@akshajg6247 oh sorry abou' th't ........ but it will happen same with your eyes. anyway which class are you from..
@akshajg6247
@akshajg6247 3 года назад
@Legendary Entertainment sorry this question was asked by my brother he scored 94 %
@nsowdkar
@nsowdkar 4 года назад
what is gut
@harishsaxena5649
@harishsaxena5649 3 года назад
Ur alimentary canal is also called as gut
@manjupujar6835
@manjupujar6835 3 года назад
Intestine
@sanyamchauhan2794
@sanyamchauhan2794 4 года назад
😁😁😁😃😃😃😁😁😃😁😁😁😁😁😁
@adityakaushik1573
@adityakaushik1573 4 года назад
Where is our ram bhaiya
@mbbsguyveer
@mbbsguyveer 4 года назад
Then, what are chromatin 🙄
@sunisungGalaxy
@sunisungGalaxy 2 года назад
Chromatin is the material which is there in a cell when it is not going to divide, like the cell can't just divide in 2 na! So these tangled chromatins become those coiled chromosomes before division
@mbbsguyveer
@mbbsguyveer 2 года назад
@@sunisungGalaxy Thnq😃but has been 1 year ab achhe s smjh aa gya tha😌mbbs first year right now🤩remembering time when I didn’t know chromatin🥲
@AwaamTillTheEnd
@AwaamTillTheEnd 8 месяцев назад
​@@mbbsguyveer😂abb kahan ho bhaiya
@mbbsguyveer
@mbbsguyveer 8 месяцев назад
@@AwaamTillTheEnd 2nd year😆
@VikasPatel-fn2ky
@VikasPatel-fn2ky 6 месяцев назад
Sexual reproduction makes us UNIQUE WoW. 😊
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