100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
MCB 2050 Lecture Notes #1 Exam Questions and Answers | Graded A+ $10.99   Add to cart

Exam (elaborations)

MCB 2050 Lecture Notes #1 Exam Questions and Answers | Graded A+

 9 views  0 purchase
  • Course
  • MCB 2050
  • Institution
  • MCB 2050

MCB 2050 Lecture Notes #1 Exam Questions and Answers | Graded A+ Eukaryotes are multicellular. What does this compartmentalization achieve? - Compartmentalization allows for complex eukaryotic gene regulation. What does complexity achieve? - Multiple levels of gene control. Therefore, what do...

[Show more]

Preview 3 out of 22  pages

  • October 12, 2024
  • 22
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MCB 2050
  • MCB 2050
avatar-seller
JOSHCLAY
©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

MCB 2050 Lecture Notes #1 Exam

Questions and Answers | Graded A+


Eukaryotes are multicellular. What does this compartmentalization

achieve? - ✔✔Compartmentalization allows for complex eukaryotic gene

regulation.

What does complexity achieve? - ✔✔Multiple levels of gene control.

Therefore, what do both compartmentalization and complexity facilitate in

eukaryotes? - ✔✔Complex gene regulation.

Eukaryotes are differentiated and grow at different rates. How is complex

gene regulation advantageous? 2 types of control - ✔✔Spatial control.

Only expresses a specific subset of the genome. Think of tissues and cell

types. Temporal control. Accounts for different developmental stages and

processes. Therefore, their genes must be switched on or off.

Where are the two locations(steps) of gene site regulation? - ✔✔The

sites of regulation are at transcription and protein modification.

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

Why is gene regulation sourced at these two points? - ✔✔@

transcription, this is the most economical in terms of resource and energy

use. @ protein modification, it is a fast response reaction. This occurs in

the cytoplasm where the protein can modify. An example is heat shock

protein.

What are the two factors that induct gene expression? - ✔✔By biological

factors and environmental factors. Examples include steroid and peptide

hormones considering biological factors.

Why is transcription more difficultly controlled in eukaryotes vs

prokaryotes? Key word - ✔✔Eukaryotic genes are sequestered in the

nucleus

What does "sequestered" mean? - ✔✔Since eukaryotes are membrane

bound organelles, environmental factors must be transmitted and received

from the extracellular membrane all the way into the nucleus onto the

chromosome.

How else do eukaryotes have more obstacles when facing gene

regulation? - ✔✔Many eukaryotes are multicellular and environmental

cues have to pass inter cellularly for regulation.

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

Otherwise, consider protein-DNA interaction on gene regulation. Is it

different from prokaryotes? - ✔✔No, it is still positively and negatively

regulated, and transcription factors remain the same.

Consider the induction of gene expression. Give examples? -

✔✔Biological factors and Environmental factors. Specifically with

biological factors, steroid and peptide hormones. Heat Shock is an example

of an environmental factor.

How is gene expression regulated by steroid hormone? - ✔✔Steroid

hormone, a lipid-soluble molecule derived from cholesterol, is able to

permeate the cell membrane.

1. The steroid hormone combines with the receptor protein.

2. The hormone/receptor complex binds to hormone response element in

the DNA.

3. Stimulates transcription.

How is gene expression regulated by peptide hormone? - ✔✔Peptide

hormone, a linear chain of amino acid, is unable to permeate the cell

membrane.

1. The peptide hormone attaches to membrane-bound receptor proteins

and activates.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 JOSHCLAY. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $10.99. 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

Start selling
$10.99
  • (0)
  Add to cart