11 - Neo-Darwinism vs. Neo-Lamarckism - April 12

Who proposed a mechanism for how animals evolved before Charles Darwin?

• Jean-Baptiste Lamarck

• Alfred Russel Wallace

• Gregor Mendel

• Isaac Newton

What did Lamarck believe caused giraffes to have long necks?

• Random chance

• Continual stretching to reach food

• Natural selection

• Genetic mutation

According to Lamarck, how were acquired traits passed to the next generation?

• By genetic inheritance

• They were not passed on

• Through natural selection

• Through use and disuse

What was the key difference between Darwin's and Lamarck's theories of evolution?

• Darwin believed in use and disuse

• Lamarck believed in descent with modification

• Darwin's theory did not involve the modification of traits by the life of the parent

• Lamarck's theory was based on natural selection

What does 'fitness' mean in the context of Darwin's theory of natural selection?

• Physical strength

• The ability to run fast

• Suitability to environment

• Intellectual capability

• Mutated traits from previous generation

How did Darwin propose changes within a species occur?

• Through a gradual process over time

• By individuals acquiring traits during their lifetime

• By divine intervention

• Through sudden mutations

Who wrote to Darwin about having developed a similar theory of evolution?

• Alfred Russel Wallace

• Gregor Mendel

• Thomas Malthus

• Jean-Baptiste Lamarck

What was Darwin's voyage that changed his life and science forever?

• Journey on the HMS Challenger

• Expedition on the HMS Endeavour

• Voyage on the HMS Beagle

• Travel on the HMS Victory

Gradualism is associated with...

• Darwinism

• Lamarckism

What is epigenetics?

• study of changes in gene expression that are heritable and do not involve changes to the underlying DNA sequence

• study of changes in the cellular integrity of an organism

• study of the loss of genes from the DNA sequence due to trauma or environmental factors

• study of how mutations occur