Summary
Summary Notes on gene control in eukaryotes.
- Course
- Institution
Summary Notes on gene control in eukaryotes.
[Show more]
Seller
Follow
AlisK
Content preview
Gene control in eukaryotesSome genes are transcribed all the time to produce constituitive proteins;
others are only 'switched on' when their protein products are required.
Transcription factors bind to the promoter region of a gene. This may increase
or decrease the transcription of the gene. Their roles are to make sure that
genes are expressed in the correct cell at the correct time and to the
correct extent.
Effects of transcription factors:
• form part of the protein complex that binds to the promoter region of the
gene
• activate appropriate genes in sequence
• determination of sex in animals
• allow responses to environmental stimuli
• regulate cell cycle, growth and apoptosis
• give hormones their effect
Gibberellin (a plant hormone) controls seed germination in plants
such as wheat and barley by stimulating the synthesis of amylase.
- DELLA protein inhibits the binding of a transcription factor to the gene
promoter PIF
- gibberellin causes the breakdown of DELLA protein
- gibberellin allows PIF to bind to its target promoter
- transcription of the gene can take place
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller AlisK. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.79. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
72042 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now