Case
The LEGO Bricks of Life - Case 13 - Maastricht university - Biomedical Sciences
- Course
- Institution
Case of 5 pages for the course The LEGO Bricks of Life at UM
[Show more]
Seller
Follow
jayadewin1
Reviews received
Content preview
Case 13: A fictious scientific debate BBS1001 2023/202417 oktober 2023
Keywords
- Genotype and phenotype
- Development of different species
- Inheritance
- Evolution
- Acquired characteristics
- Evolution theories
- Darwin
- Gain or loss of functionality by the environment
- Lamarck
- Epigenetic
- Gene transfer
Problem statement
Genetic evolution
Learning goals
1. What is evolution?
2. Darwin’s and Lamarck’s evolution theories
3. Difference between those theories (conception of species, mechanism of new
species production, example)
4. What is epigenetics in Lamarckism? (DNA methylation, histone modification,
chromatin structure, RNA modification)
5. What is speciation?
, Case 13: A fictious scientific debate
1. What is evolution?
Evolution I the process by which different kinds of living organism are believed to have
developed from earlier forms during the history of the earth. Species change in the
characteristics over several generations and relies on the process of natural selection.
- The theory of evolution is based on the idea that all species are related and gradually
change over time.
- Evolution relies on there being genetic variation in a population which affects the
physical characteristics (phenotype) of an organism.
- Some of these characteristics may give the individual an advantage over other
individuals which they can then pass on to their offspring.
Natural selection (survival of the fittest)
- Charles Darwin’s theory of evolution states that evolution happens by natural
selection.
- Individual in a species show variation in their phenotype. This variation is because of
differences in their genes.
- Individuals with characteristics best suited to their environment are more likely to
survive in finding food, avoiding predators, and resisting diseases. These people are
more likely to pass their genes on to their offspring.
- As a consequence, those individuals most suited to their environment survive and
given enough time, the species will gradually evolve.
Different types of evolution:
Convergent evolution
When the same adaptions evolve independently, under similar selection pressures. For
example, flying insects, birds and bats have all evolved the ability to fly, but independently
of each other.
Co-evolution
When two species or groups of species have evolved alongside each other where one
adapts to changes in the other. For example, flowering plants and pollinating insects such as
bees.
Adaptive radiation
When a species splits into a number of new form when a change in the environment makes
new resources available or creates new environmental challenges or new natural barriers.
For example, finches on the Galapagos have developed different shaped beaks to take
advantage of the different kinds of food available on different islands.
Divergent evolution
Parallel evolution
2. Darwin’s and Lamarck’s evolution theories
Darwin’s theory
Natural selection:
1. Overproduction: individuals produce more offspring than necessary for the survival
of the species.
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 jayadewin1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.66. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now