Regulation of transcription | Biomolecules | MCAT | Khan Academy

Created by Tracy Kim Kovach.

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[ratatat]

You should of clarified that operators are not present in eukaryotes, only in prokaryotes.

[Bayooneh]

She speaks way too fast and doesn't write enough, had to pause a thousand times. Also, you she didnt mention that Eukaryotes DO NOT have an operator like prokaryotes do...and didn't mention a LOT of necessary details about transcription. Sal is so much easier to follow...please slow down and take more notes in future videos.

[khushanrahanu]

In the beginning, the given examples of the cells (i.e., sensory cells and Gut cells) are actually examples of eukaryotic type, but then the actual topic is based is found to be based on prokaryotic cells (i.e, in Escherichia coli).

[mnoori]

Why are you mixing Prokaryotic and Eukaryotic gene expression?

[nefo]

she speaks like a motor boat i had to pause million times

[zainabahmed]

I am not sure if there was a time limit to this video but it felt like there was a fast forward button in this. As a visual person, I was getting anxious having to replay the same sentence several times even when I stopped taking notes to just absorb what's going on. I would appreciate slowing down and putting up pictures even if they are not drawings

[Rosiewilding]

I agree, I do love Khan academy for its ability to break down complicated information into understandable content but unfortunately this girl is just too fast at delivering a muti step process.

[chinyere]

Hey good video, but I think upstream is 5' and downstream is 3'. I noticed u mixed it up a bit

[chitalyfe]

Activators don't bind to the promoter, only the basal transcription factors bind. Activators bind to enhancers, silencers, or promoter-proximal elements.

[MsCassiexo]

The main guy explains things better- he's so much easier to listen to!!!! :(

[KhanOmar]

Great video, but i feel you spoke very fast, maybe perhaps you had limited time to make the video. I literally wrote every single word she said a 7min video took me like 35min to cover all the martial, but other then that great video!

[modolief]

This is the most molecular biology I've seen compressed into a short time sequence. Any more data and it would create an informational singularity with an event horizon! Honestly though, I'm impressed. Very interesting, stimulating content.

[zahraoasti]

my god, had to play this one in slow-motion.

[avelinoardhika]

OMG how many lightyear does her speaking go?

[Canada]

Prokaryotic and Eukaryotic transcription shouldn't be amalgamated into one explanation. They are very different in many ways.

[huzzahpringles]

you didn't explain enhancers at all. just listed some components and said they loop the DNA "so that you can then recruit RNA polymerase and transcription factors"... which are recruited anyway...?

[hollyberi]

Is this for Euks or Proks? This video is not as good as the others, she speaks too quickly and it's not as well-explained.

[tahsinuddin]

ngl this is the first time a khan academy video has left me more confused...

[tylerjohnson]

I have no idea what's going on; get Sal on the line.

[legenarymaster]

I think you put the location of the enhancer and silencer in the wrong spot. Pretty sure it's supposed to be upstream of everything, not downstream.