One Gene-One Enzyme Hypothesis (Beadle & Tatum Experiment)
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- Опубліковано 5 жов 2024
- Biology Professor (Twitter: @DrWhitneyHolden) teaches a lesson about Beadle and Tatum's One-Gene One-Enzyme Hypothesis, complete with an example in the arginine biosynthesis pathway and a discussion of the modern understanding of this concept that points out many exceptions to the original hypothesis.
You have no idea how help your videos are, thank you so much. Please keep making these videos!
this was so helpful thank you so much! we switched to online for my college because of the coronavirus and lecture has been messed up from the transition. this has helped so much for my online exam in a couple days (-:
Please share my videos with your teacher and classmates. I want to help as many people as possible.
With this video I now got the whole process all figured out.
I understood more than in my class at school and I am German.
Bei mir einfach dasselbe 😂😂
Same Situation
las mat genau
Blöd, wenn the simple biology das nicht behandelt hat...
But my teacher not even try to talk about this
Thank you very much. My mates had a hard time figuring this out. You were very helpful.
thank you so much this was so helpful, I was having such a hard time understanding the experiment
This helped me out a lot more. Didn't realize I was forgetting really important information such as the exons.
I am a great fan of this lady..plz somebody tell her she is sooooo beautiful n inteligent,,
the first concept I became familiar with through her videos was gram positive n gram negative bacteria
Subtitles helped me🙏🏻
Thank you so much 😊
very well explained
You’re awesome! Thank you.
This helped a lot thank you
You are welcome!
Thank you professor :)
You are welcome again! :)
Helped Ty!!
Thank you
Idk why we are taking this in 11th grade in sch🤷🏻♀️
How do you mean? Too advanced? Too simplistic?
What..
But I got this in my 12th class
Superb
you are great
So nice
I'm having such a hard time understanding the metabolic pathway part of this. My book says "a mutant strain is blocked farther along in a pathway if fewer intermediate compounds permit the strain to grow." Huh?
It's hard to answer this without more context from your book. Perhaps the textbook means that when a mutant can make fewer of the intermediate compounds in the pathway (because of being mutated) then the cell cannot grow. Sorry I can't be more help!
Thank you Mam#
Maam you are very talented and adorable
Yeah.. definitely lots of creepers in the comment section..
bruh
Yeah, sadly some people just don't have that inside voice that says, "Hmm.. should I say this? Probably not." I'm certain she's been told how beautiful she is thousands of times by her husband. I'm here for the knowledge.
Beadle and tatum did this experiment in 1941 or 1943? Mem?
Their paper was published in 1941.
Why bacteria dosent express non-coding part of human being?
I don't understand your question...bacteria WILL express certain non-coding parts of human DNA, like in the case of introns. Bacteria don't have a splicing mechanism like eukaryotic cells and so human DNA put into a bacterial cell for expression must have the introns already removed.
why DNA doesnt mutate, when we add a radioactive substance in it during Meselon`s and Stahl Experiment.
The Meselson-Stahl experiment used "heavy" nitrogen (one with an extra neutron). It is a different isotope of nitrogen, but it is NOT radioactive - so the DNA doesn't mutate. :)
if the isotope of nitrogen were not then why they radiate?
mam plz define transgenic animals
A transgenic animal is an animal whose genome has been changed to carry genes from other species. So, for example, a mouse that has been altered to carry a human gene.
@@BiologyProfessor Like a chimera in a sense?
Kind of, but not really. A chimera is a single organism that's made up of cells from two or more "individuals"-that is, it contains areas of the organism that contain one of two totally different sets of DNA. So two cells in a chimaera could have completely different genomes. In a transgenic animal, every cell will have the same DNA, but some of that DNA would have come from a different species. Great question though! I love the thinking! :)
One gene one enzyme is over simplification
Nom enzyme proteins
plz mam give me a short and brief answer that how gene ,dna,and chromosomes are related. i need it in urgency
DNA is a polymer made up of nucleotide monomers that carries an organism's genetic information. DNA is organized into chromosomes in each cell. A gene is a unit of genetic information that encodes a protein (or regulatory RNA).
Biology Professor thanks mam
❤❤❤❤
How beautiful mam u r😘❤
Hello?
Hi?
Biology Professor
I like your lecture and you
Mam u are very pretty ❤❤❤❤❤❤
u look like emma watson
You are looks like a Hollywood heroine 😍
You're too 🔥 for a professor
...Thanks? Teaching is fun! Hot girls can do it too. ;)
Well this is out of place…
Yikes
Idk why but she looks like emma watson