Lectures Week 1 Flashcards
The quote “Nothing in Biology makes sense except in the light of Evolution” stems from who?
Theodosius Dobzhansky (1973)
What is Theodosius Dobzhansky’s famous quote on the significance of evolution?
“Nothing in Biology makes sense except in the light of Evolution”, (1973)
From which year is Theodosius Dobzhansky’s quote “Nothing in Biology makes sense except in the light of Evolution”?
1973
What is the first name of T. Dobzhansky?
Theodosius
“Nothing in Biology makes sense except in the light of Evolution” is a quote by Theodosius ….. .
Dobzhansky
Darwinism has three necessary ingredients: competition, variation and … .
inheritance
Darwinism has three necessary ingredients: … , variation and inheritance
competition
Darwinism has three necessary ingredients: competition, … and inheritance .
variation
What are the three necessary ingredients for Darwinism?
competition, variation and inheritance
Darwinism in its core captures which idea?
Evolution by natural selection
What does it mean to say fitness is a relative term?
Fitness is relative since it depends on what’s typical for the given population.
What are the four forms of natural selection?
Directional, Stabilising, Disruptive and Frequency-dependent selection.
Given Directional selection, how does the distribution of a trait change across the population?
There is selection against one extreme; the peak shifts in one direction.
Given Stabilising selection, how does the distribution of a trait change across the population?
There is selection against both extremes; the peak gets higher and narrower.
Given Disruptive selection, how does the distribution of a trait change across the population?
There is selection against the mean; two different peaks emerge.
