DNA, Chromosomes, Genes, and Traits: An Intro to Heredity

Рет қаралды 4,551,122

Күн бұрын

Explore DNA structure/function, chromosomes, genes, and traits and how this relates to heredity! Video can replace old DNA structure & function video and in addition covers foundational concepts of heredity. Expand details for video handout: www.amoebasisters.com/handouts and table of contents.
Table of Contents:
Video Intro 00:00
Intro to Heredity 1:34
What is a trait? 2:08
Traits can be influenced by environment 2:15
DNA Structure 3:25
Genes 5:32
Some examples of proteins that genes code for 5:54
Chromosomes 6:37
Recap 7:18
To learn more about heredity including dominant and recessive traits, alleles, and probabilities in inheritance, see our full playlist here: • Asexual and Sexual Rep...
The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. For more information about The Amoeba Sisters, visit:
www.amoebasisters.com/about-us...
We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: openstax.org/details/books/bi...
⭐We have a menu of our resources that complement our videos! Visit docs.google.com/spreadsheets/...
Support Us? www.amoebasisters.com/support-us
Our Resources:
Biology Playlist: • Amoeba Sisters Biology...
GIFs: www.amoebasisters.com/gifs.html
Handouts: www.amoebasisters.com/handout...
Comics: www.amoebasisters.com/paramec...
Unlectured Series: www.amoebasisters.com/unlectured
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TIPS FOR VIEWING EDU KZfaq VIDEOS:
Want to learn tips for viewing edu KZfaq videos including changing the speed, language, viewing the transcript, etc? www.amoebasisters.com/pinkys-...
MUSIC:
Music in this video is listed free to use/no attribution required from the KZfaq audio library kzfaq.info...
COMMUNITY:
We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See KZfaq's community guidelines and how KZfaq handles comments that are reported by the community. We also reserve the right to remove comments.
TRANSLATIONS:
Hindi Subtitles Credit: Alisha Aggarwal
Italian Subtitles Credit: Sofia
While we don't allow dubbing of our videos, we do gladly accept subtitle translations from our community. Some translated subtitles on our videos were translated by the community using KZfaq's community-contributed subtitle feature. After the feature was discontinued by KZfaq, we have another option for submitting translated subtitles here: www.amoebasisters.com/pinkys-... We want to thank our amazing community for the generosity of their time in continuing to create translated subtitles. If you have a concern about community contributed contributions, please contact us.

Пікірлер: 1 000

@AmoebaSisters 5 жыл бұрын

You can find other videos related to heredity here in our heredity playlist! kzfaq.info/sun/PLwL0Myd7Dk1FVxYPO_bVbk8oOD5EZ2o5W Additionally, we have a resource for this video here www.amoebasisters.com/handouts

@tharuni382 4 жыл бұрын

can you please do a video comparing chromosomes and chromatins

@marielmaloloy-on3580 4 жыл бұрын

Amazing videos i easily understand beacuse of those cute amoebas❤

@ke_7655 4 жыл бұрын

same lol XD

@redcloak5230 3 жыл бұрын

are teacher thinks you are so good at teaching science that she makes us watch these videos

@ogjr2473 2 жыл бұрын

Thank you

@_.Manuu._ 3 жыл бұрын

Amoeba Sisters taught me more in biology than my biology teacher could ever.

@Dudu.fa999 2 жыл бұрын

Same

@daha3074 2 жыл бұрын

I doubt they were that bad of a teacher. I'm willing to bet you're just a very lousy student.

@cooper4892 2 жыл бұрын

@@daha3074 nah, there are a lot of bad teachers out there. the fact that this person went out of their way to watch this channel shows they are interested in the subject - i dont think any lousy student would do that

@deimosok2003 2 жыл бұрын

@@daha3074 Matters not,if a teacher is willing to make his students interested on what he explains he is a good teacher if he just explains stuff pretending everyone around him knows the same stuff as he,then he is a bad teacher and a fool.

@EPIKsoccerclips 2 жыл бұрын

We don’t even learn anything in class so this is my only way to learn

@aeons6969 4 жыл бұрын

Who's actually watching this on their own accord to strengthen their understanding? Good for you!

@TakingTheCheckerd 5 ай бұрын

@liviyoungie 5 ай бұрын

got a test tmrw

@michaelloves2learn 4 ай бұрын

me!!!

@onlyanimefans1641 3 ай бұрын

I don’t think anyone here is💀

@ThaisSantos94 3 ай бұрын

Me 🙋‍♀️ I like to learn!

@juliagulia3617 5 жыл бұрын

Table of Contents from description Intro 1:34 What is a Trait 2:08 Traits that can be influenced by the environment 2:15 DNA Structure 3:25 Genes 5:32 Examples of proteins that genes code for 5:54 Chromosomes 6:37 Recap 7:18

@OthyPvp 5 жыл бұрын

Depressed Beans thanks so much very helpful

@sofiaezzat3576 5 жыл бұрын

Thanks m8

@arishalyrics6686 5 жыл бұрын

Thanks dude

@ae3119 5 жыл бұрын

THANK YOUUUUU

@how-amazing3427 5 жыл бұрын

You are a human form of a god

@didiersamou8598 5 жыл бұрын

I'm a medical student in my 3rd year and since there is so much to learn, ( at times even felt like giving up cuz the stress is too much but I can guarantee you is the best subject to learn) I use your channel as a review and it helps a lot remembering stuff I cannot longer remember so thanks and keep pushing thru for the subscribers.

@trahadbad 2 жыл бұрын

Keep going king 👑

@lurvlay 6 ай бұрын

How you doing now?

@didiersamou8598 6 ай бұрын

Doing great. I'm a lab technician & a Nurse now by god's Grace. But unfortunately I couldn't finish my med degree cuz of the COVID

@Kimmy8it 4 ай бұрын

You are a rockstar 😊

@SukunaMadaMada 3 жыл бұрын

Who else is not doing their assignment and just scrolling through the comments

@aashgiselle 3 жыл бұрын

right here

@Beans-mz5co 3 жыл бұрын

lmao same

@tim8mit657 3 жыл бұрын

@idkjustsomeguy8945 3 жыл бұрын

Lol

@alexlepanpan65 3 жыл бұрын

sssshhhhhhh

@queenregina9940 4 жыл бұрын

4:48 Bold of you to assumed my species

@kxyl33 3 жыл бұрын

LMAO

@theviking6363 3 жыл бұрын

same lol FEESH GANG

@aradhaya6854 3 жыл бұрын

LOLOLOL

@Stinkyskunky 4 ай бұрын

@laglord6969 3 ай бұрын

fr im a walmart bag

@halkun7191 6 жыл бұрын

Totally going to be rewatching these for AP bio and college bio.

@diananimyel166 3 жыл бұрын

Allan Vang I am literally hiding from my roommate who is reading her textbook and watching this for college bio.

@mi00fnbr38 4 жыл бұрын

whose here cause of corona virus and schools are closed

@Tomthesk8r 4 жыл бұрын

@Shaun Plumer grammar police loll

@RezhiaEdwards 4 жыл бұрын

I think everybody is buddy.

@agentketchup4635 4 жыл бұрын

yes

@eqvzla6436 4 жыл бұрын

Me.-.

@mohwe1637 Ай бұрын

I’m from the future :)

@Kodiak_8- 4 жыл бұрын

Who’s not even paying attention and is just reading the comments

@emmychan2104 4 жыл бұрын

You know it

@kevinmartin2973 4 жыл бұрын

Lmao

@natztea 4 жыл бұрын

lmao me

@carolinecallaghan8781 4 жыл бұрын

You do b calling me out bro

@chelseyabarca1159 4 жыл бұрын

Oop caught up .. 💀

@eddybarajas5115 3 жыл бұрын

When your science teacher is too lazy to teach her own class so she just gives you a video link

@hhhsss7432 3 жыл бұрын

thats literally me rn

@pewesatog1238 3 жыл бұрын

yes this comment right here

@swordmaster0312 4 ай бұрын

facts

@fawxu 4 жыл бұрын

biology teacher making me watch this and i aint even mad

@jaliaseptt 3 жыл бұрын

theyre so satisfying for no reason

@SilasPart2 3 жыл бұрын

fr tho

@sarah_xox9059 Жыл бұрын

“Big on relevance” exactly why your videos make so much sense and help me to understand way better

@lollypopfiend Жыл бұрын

I messed up and took a biology unit in college without having studied it in high school, so you guys are absolutely saving my life here. Thanks so much!

@peerlesscucumber1896 4 жыл бұрын

im preparing for a med entrance test and im so thankful to God for coming across @Amoebasisters because im learning a lot with so much fun!! keep making more videos because it is so helpful for so many of us.

@meyouandthemoon1347 2 жыл бұрын

I love love love your videos so much! They’ve been really helpful in my studying, and they’re absolutely adorable and so much fun to watch. Thanks for making all this amazing content. 😄❤️

@juliahopeevans 3 жыл бұрын

I don't ever comment on KZfaq but these videos are incredible! I'm in college studying humanities and didn't get biology until I watched these videos. Thank you!

@Keirosqeen 3 жыл бұрын

Who else is over 21 now and had boring biology classes in middle school and high school, therefore never paid attention to Biology and now in the middle of pandemic, taking Genomics class on Coursera, watching videos about biomimicry, reading articles about genetic and now found these videos, and completely in love with biology! I chose a wrong major :(

@saularzola7746 Жыл бұрын

What major did you choose?

@liviyoungie 5 ай бұрын

no sorry

@aaliyaah5328 3 жыл бұрын

I owe my entire biology grade to this channel

@heechabang 6 жыл бұрын

Can you plz do a face reveal, that would be so cool! I think everybody would love it since you are the best science channel around!

@Josh-mv9jb 5 жыл бұрын

Check there website faces are there

@loganschmidt5968 5 жыл бұрын

Who else went and Googled it?

@Vengeance566 5 жыл бұрын

Crash course is a hundred times better

@ffiiggyy 5 жыл бұрын

*NICE* like count

@elizabethmisiame3043 5 жыл бұрын

@@Vengeance566 masa masa pls crash course kraa when they are talking you cant even hear anything he talks too fast and if you want to say something nice about them go to their channel and say it this place for the amoeba sisters. you are just trying to put someone's hope down.

@LeafInTea 6 жыл бұрын

Hi Amoeba Sisters, I am going to have my last Biology exam tomorrow. By last, I really mean that I probably won't touch a biology quiz ever again in my life.(I think) I mean, I am from an engineering school, but the school forces students to take Bio in their first year.(Why is biology important for engineering students? That is a topic for another day.) Over this one year of studying Biology I have taken a liking for it, partially thanks to your videos. Your videos are informative, the animations are cute you have a huge enthusiasm for teaching the subject. Although my academics with biology may have come to an end, I will still continue to watch your videos in the future. Good work and thank you for having such great videos.

@rezen_moved7241 4 жыл бұрын

LeafInTea Lmaooo no answer

@fathimasulaiman4671 4 жыл бұрын

You might require devices that are needed for life so you need to have some basic idea

@vampiszoonis9691 4 жыл бұрын

Bionics

@thelurker1330 2 жыл бұрын

How’d it go?

@agnesbrandas4814 4 жыл бұрын

I'm Studying at the Swedish Agricultural University and I love your videos. The animations, explanations and the anecdotes makes it more fun and easier to remember. It is even possible to learn from your videos while crying of stress, the animations makes it feel better :') Thanks a lot! /Veterinarian nurse student

@ipadinurdad3327 2 жыл бұрын

i really hope u become a veterinarian if that’s wat ur still pursuing

@vilonam4777 8 ай бұрын

Omg, me too!! Hur gick det, är du färdig studerad? Tänker när det verkar kunna vara genetiken du gick för tre år sedan? 👀

@samanthacody3856 3 жыл бұрын

You helped me through high school biology and now I'm back for your help in college biology. Thank you Amoeba Sisters.

@Thereisnoreasonforit 9 ай бұрын

This channel has really helped me a lot. When I looked at Turkish videos, I could never find such useful content. It made it easier for me to understand. I hope our science teacher will start teaching lessons one day.

@BryStone1909 3 жыл бұрын

Whoever asked that question just helped me with studying, thanks to whomever asked that

@Thumbelinamine 3 жыл бұрын

Amoeba Sisters... I love you! I am a visual learner. Your simplified mnemonics and animated illustrations makes it stick to my brain. This has been enlightening. Thank you so much for letting me understand in a simplified illustration these complicated concepts that I had a hard time learning in undergraduate. Now, I am in Grad School and how I wish we can transform education in this way. Very engaging! Love the gift boxes of chromosomes from mom and dad!

@connorshampoo8600 2 жыл бұрын

Kinda sus

@BaggedDoodlz 3 ай бұрын

idk man kinda sus there

@hunterlaserna 6 жыл бұрын

Your videos help me pass my finals.

@davidherberger8104 4 жыл бұрын

Your videos are getting better and better. You can really tell that you have taught this material by the way the videos are structured.

@sean7135 Жыл бұрын

A nice starting point to understand the complexity of inheritance

@rizue2581 4 жыл бұрын

everyone saying that they got here from an assignment 2 months ago me having this assignment today due the next day....

@TunchiKami04 4 жыл бұрын

bruh get on my level mine is due today

@jessezong2507 4 жыл бұрын

@@TunchiKami04 bruh get on my level mine is due tommorow

@wholewheat5160 4 жыл бұрын

Mine was due yesterday

@dillanima1007 4 жыл бұрын

@@jessezong2507 bruh get on my level my stuff due in 1 minute

@Vampireraid 4 жыл бұрын

idek when mines due

@Xlebaking 6 жыл бұрын

Just in time for finals! xD

@JnnYoo 3 жыл бұрын

Who else is here because their teacher is terrible at their job

@adachi5928 5 жыл бұрын

these people will always teach me more in 8 minutes than my 6th-grade science teacher in 8 years

@rwc.8342 4 жыл бұрын

You spent 8 years in 6th-grade. Wow!

@shtuffs 4 жыл бұрын

@@rwc.8342 haha

@mistmango7881 2 жыл бұрын

how’s 8th grade

@emmabila3480 6 жыл бұрын

i do byu biology AP and u r the only ones that can summerise 5 lectures into 1 video, u deserve more subs

@idaadoush5077 4 жыл бұрын

I'm on an ameba sisters marathon cuz I have a test today. Thank you ur vids help so so much!

@chidvilasinikonda93 2 жыл бұрын

Love your videos! I'm currently in 8th Grade, and watch these for fun or as a revision video before a biology test.

@lianawang4219 2 жыл бұрын

I was close to tearing my hair out, and what I thought was a kid's show saved my grades! Thanks Amoeba Sisters!

@pavanik1908 5 жыл бұрын

your videos are simply amazing..i have a maths background but in college, it was mandatory to study biology, about which we had no idea!!those bacterias were always our worst nightmare..but i found ur channel.. and i am saved!! i just wanted to say tht ur videos are simply astounding..but why dont u teach u all about other things too like planet earth,plate tectonics or may be physics???(i dunno if u will read this or not but i wanna thank u from the bottom of my heart!!)

@swin3y Жыл бұрын

I’m honestly so inspired by this video. It has changed my perception of life as we know it. This is definitely the video I’ve seen in my life.

@julianabell5361 6 жыл бұрын

Thank goodness this exists. The quiz is tomorrow and this is just what I needed

@gwotaku01 3 жыл бұрын

You guys are amazing! Thank you for the very important work that you do, for all the tremendous effort that goes into your videos. My students are in love with your explanations, especially during this pandemic when we're stuck doing online learning.

@danielschoenherr6027 4 жыл бұрын

These two have been my biology teachers for the past few weeks, and it seems like a lot of kids are in the same boat too

@lilacsandjasmine 3 ай бұрын

I am a retired teacher of 34 years - primarily elementary grades, but did do some middle school. Using your videos to help my son pass a required course in bio at a local community college. The prof told the kids he wasn't going to lecture - they could just use that time to read the book. Only shows up for the labs - to supervise. Kids have to read chapters and take multiple choice/true/false tests ( probably because it can be scanned and graded). Guy is doing as little work as possible - which infuriates me! Thanks for making this whole experience for my son a little less frustrating with your excellent videos. If I could I would recommend that the prof's pay go to you - since you taught him.

@Achievius 4 жыл бұрын

Thank you for your videos Amoeba Sisters, words cannot express how much they help me :)

@farhanahmed2508 6 жыл бұрын

I love your videos! You make Biology fun and illustrative, thanks!

@skylerp5740 4 жыл бұрын

these have the BEST FREAKING JOKES like actually thank you so much for making this more manageable and enjoyable than usual :-)))

@misscarly8517 3 жыл бұрын

This was a very good intro and overview, great explanation and visuals helped me get it :) Thanks

@khonghengo 4 жыл бұрын

Amazing video, will watch all of your videos.

@saranglee6578 6 жыл бұрын

just what i needed lol my biology final is tomorrow. thank you so much!!!

@AmoebaSisters 6 жыл бұрын

Good luck! We hope you ace it! ^__^

@saranglee6578 6 жыл бұрын

Amoeba Sisters thanks!! i probably will thanks to you guys :)

@Khalidtawfik 6 жыл бұрын

i hope you do well too because im going to take one tomorrow too good luck

@saranglee6578 6 жыл бұрын

Khalidtawfik good luck to you also!!

@IO-kv8jm 5 жыл бұрын

I am on highschool and i still come here for revision

@queenofcountrymusic 6 жыл бұрын

Thanks for this video great review. I'm in high school 9th grade my 8th period class we always say stay curious at end of every video

@syfox3388 6 жыл бұрын

Noel Robledo same

@abdulsalamoladimeji9568 6 жыл бұрын

omg, im nineth grade also and bio is at 8th period also for me!!!!!!

@zhacxdigifan 6 жыл бұрын

Queen Of Country Reba McEntire 8th period ?!?! How long are your periods

@andrewzhu5394 5 жыл бұрын

@@zhacxdigifan I'm have 7 periods but other students don't have 7 periods and those period are called empty's

@Scrublorrdo 5 жыл бұрын

I have 6 50 minute long periods

@alwaysalhamdulillah1 2 жыл бұрын

LIFE CHANGING !!!!!!!!! Thank you so much for making learning biology easier and so much more fun

@madelinemitchell5376 2 жыл бұрын

I was introduced to the Amoeba Sisters my first semester of college in my intro to biology class. Here I am my junior year coming back to help me brush up for my genetics class haha.

@thomasquick4050 6 жыл бұрын

Just going to let you know, your videos are greatly valued in classes. My science teacher specifically looks for these. I think the dorky humour is the best and you just keep being awesome.

@unicornfantasycreatives3590 3 жыл бұрын

Thanks for this video! I love the cute animations and the simple, interesting way both you explain things! I also find the recap section super useful for going back over things as consolidatin. ❤️❤️❤️

@qamarngqawana634 4 жыл бұрын

One of the best channels that help with science !! I'd be lost without this, thank you !

@vilchenburgbodesky1 3 жыл бұрын

I'm taking a college course and you are a lifesaver.

@bender124 6 жыл бұрын

I love your videos! Even if I haven't covered this subject yet, it's still great to watch!

@gladinelamarre384 5 жыл бұрын

In elementary school and middle school I used to hate watching your videos lol but as i grew older and got to high school and my teachers weren't really getting me to understand the subject I came back to you so thank you :)

@cryptictaco5834 5 жыл бұрын

Gladine Lamarre They didn’t like your comment ahhahahahahahaha

@brianhan1355 7 ай бұрын

this channel acctually makes learning fun!!!

@Pepniti 5 жыл бұрын

Life saver! I always watch your videos a few days before a test. In fact, I have a bio test tomorrow.

@Saaimaegha Жыл бұрын

i have a bio test tmrw and this help me a LOT:

@chinmaypatki4690 4 жыл бұрын

I'm watching cause of quarantine

@user-vr7ed6sx8x 3 жыл бұрын

Hey tysm for posting this online learning makes it so hard to learn anything and your videos really help

@rinunezjr 3 жыл бұрын

Great video, quickly explains everything I worked so hard to learn in tutoring. Very efficient

@ramazansarier2040 6 жыл бұрын

Greetings from Belgium! I love the work that you do, the simplicity of the way you explain, etc!

@maya_e-girlooo1170 3 жыл бұрын

I can’t join my class so teacher sent me this

@valentinabogdan1581 3 жыл бұрын

Exactly

@avishi4079 2 жыл бұрын

Love your videos, gives me really better understanding of topic. Thank you so much 💕

@0livision 4 жыл бұрын

This is a really cute way of learning, the style is creative, and it has some humor!

@HimanshuRaj-ry2gx 6 жыл бұрын

let me EXPRESS myself now:- If you sisters are reading this, you should be knowing you are just awesome..thanks to you both that I could clear my concepts related to the subject..I watched most of the videos and they are way more informative THAN ANY OTHER VIDEOS ON YOU TUBE!!! * I exaggerated * but still, i wish you luck in future..what a fabulous work!

@AmoebaSisters 6 жыл бұрын

+Himanshu raj This made our day- thank you so much! ^_^

@dominogirl09 3 жыл бұрын

Now I'm just really curious how you decorated your classroom in the end Btw I really love your channel, it's so easy to understand Keep up the good work

@weegeegaming3624 Жыл бұрын

Thank you for being a fun channel, I’m getting this as he over break 😊

@BiRainbow29 5 жыл бұрын

My biology teacher always posts these videos! I just love how simplifying your videos are!

@joshuaestrada6042 6 жыл бұрын

Merry Christmas amoeba sister have a very scientific Christmas

@JojoSiwabiggestfan 6 ай бұрын

Who hasn’t been paying attention in class and has a test the next day

@angelisvegan5826 2 жыл бұрын

Please make detailed videos of these topic.. I know you can do it.. if I had to learn this from someone.. that has to be you.. You guys are wonderful ❤️💚

@ShivaniPatel-yr8xk 3 жыл бұрын

Just wow❤️😍 the way you explain and your creativity💯

@far_oppositeflow3652 6 жыл бұрын

Waoh! So wonderful. Now this topic became clear totally doubt free.. You make complex topic into a simple one in a fun way !! Thank you P² for your wonderful work and effort 😘 You guys deserve more and more subscribers!! hoping for 2M subscribers 😍 You know what pinky ,, you are a perfectionist...and petunia too are perfectionist..😍 I'm also a bit of perfectionist 😁 And Love to see euglena pet with petunia..

@bestkiddie9144 6 ай бұрын

Anyone here from your teachers?

@rosette_renah 3 жыл бұрын

This intro is all i need,,thanks

@tamiloreojo7016 Жыл бұрын

this channel is so good! it helped me study for science test really more! im subbed!

@yellow_hearts2528 3 жыл бұрын

I’m just curious, but if you still teach, do your students know that you have a popular KZfaq channel called the Amoeba Sisters? I’m sure they would think, or they do think it’s cool.

@silvermist6891 3 жыл бұрын

I love the way she speaks, just like she's telling a story to children

@thomasclark4528 5 жыл бұрын

Love, love, LOVE this series! Short, so my students don't zone out too much, fun, and easily understood. Thank you! =) Tom

@AmeliaVoutsinas 2 ай бұрын

this channel is sooooo helpful!!!!!!

@kingspeedy6162 4 жыл бұрын

Since my school closed I’m now here watching amoeba sisters damn you Coronavirus

@noahjohnson4830 4 жыл бұрын

ah yes, the corona.

@alexisroberts6960 3 жыл бұрын

I’m not giving you a like because you already have 69 :))

@user-fb7pi9cp4y Жыл бұрын

it is exceptionally clear and helpful!! Thank you!

@ramanpreetkaur7332 6 жыл бұрын

Thank you very much! I was confused and you helped me a lot! Thanks Amoeba Sisters:)

@Tomthesk8r 4 жыл бұрын

Nobody cares that your here beacuse of the schools closing. We care that your okay and well during theese tough times 💓

@pixie_stix_ 4 жыл бұрын

yessssss

@latbil 4 жыл бұрын

I was gonna get mad bc u were like the 30000th person to say that, but then it got real near the end 😭😭😭

@benjaminclark566 4 жыл бұрын

thank you

@darcy_macisaac3840 6 жыл бұрын

These videos really help me thought my 4u Biology :) thanks

@treasureorih5612 5 ай бұрын

I always enjoy your videos 💞

@crocomallow 5 жыл бұрын

wow! thank you so much. You guys explain things so clearly. My science teacher never talks about the big picture and so I get confused and overwhelmed with all the details. I really need a clear idea before we talk about specifics.

@summerpreston2077 4 жыл бұрын

Great video! Important information I gained watching this video is that DNA codes for your traits, and your cells can't function without it. DNA determines how tall you are, what color your eyes are, what color your hair is, or even if you're at risk for certain diseases. The DNA is twisted in something we call a double-helix shape. DNA is a type of nucleic acid that stands for deoxyribonucleic acid. Nucleic acids are a type of biomolecule that are up made up of building blocks called nucleotides. Nucleotides have three parts-deoxyribose, phosphate, nitrogenous base. The are four types of bases in DNA are adenine, thymine, cytosine, and guanine. DNA has two strands so there are nucleotides running up one side and running up the other side. The bases are paired together held by hydrogen bonds.