Exam (elaborations)
Mic 102 - Lecture 19 (Prokaryotic Diversity) with 100- correct answers 2024
- Course
- Institution
Mic 102 - Lecture 19 (Prokaryotic Diversity) with 100- correct answers 2024
[Show more]
Content preview
Mic 102 - Lecture 19(Prokaryotic Diversity)
with 100% correct
answers 2024
How do prokaryotes gain diversity?
In prokaryotes, horizontal gene transfer (HGT), the introduction of
genetic material from one organism to another organism within the
same generation, is an important way to introduce genetic diversity
Some products that can promote prokaryotic diversity
antibiotics, beer/wine, soy sauce
what are common features do both bacteria and archaea share?
genetic code, ATP utilization, ribosome-mediated protein synthesis, &
cell membrane
What event led to the formation of the Mitochondria and Chloroplast?
Engulfment of a bacterium by an archaeon
The availability of energy spiked at events (such as the engulfment of a
bacterium by an archaeon), & this provided the opportunity for
_________________.
, rapid evolution
What did rapid evolution allow ?
(1)More energy available to maintain larger and larger genomes
(2)Formation of working motility systems leads to new environments
available to colonize
Mitochondria and chloroplasts contain ________________ DNA
elements
protein-encoding
The origin of mitochondria and chloroplasts independently direct
__________________________.
DNA replication & division
What drives evolution?
mutation & selection
Which comes first, mutation or selection?
Do selective pressures induce mutations?
selective pressure does not cause mutations but rather determines
whether a mutation is advantageous or deleterious in a particular
environment.
do mutations arise independently and then become selected?
Classical experiments by Luria and Delbrück (the fluctuation test), used
lethal selections to show that mutants arise before selection and do
not require growth limitation for their formation.
How do mutations arise?
1) Mutations can occur RANDOMLY and get selected. (For example:
Flipping a quarter to get heads 5 times in a row. If flipped enough times,
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 BRAINBOOSTERS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73918 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now