Evolutionary Origins
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Questions and Answers

LUCA stands for

Last Universal Common Ancestor

The Endosymbiotic Theory was proposed by

Lynn Margulis

Bacteria became organelles which evolved to become a

eukaryote

The viral particle is made up of genetic material and a protein coat called

<p>capsid</p> Signup and view all the answers

A phage is a virus that infects

<p>bacteria or archaea</p> Signup and view all the answers

LUCA stands for

<p>Last Universal Common Ancestor</p> Signup and view all the answers

The viral particle is made up of genetic material and a protein coat called

<p>capsid</p> Signup and view all the answers

A phage is a virus that infects

<p>bacteria or archaea</p> Signup and view all the answers

The Endosymbiotic Theory was proposed by

<p>Lynn Margulis</p> Signup and view all the answers

Bacteria became organelles which evolved to become a

<p>eukaryote</p> Signup and view all the answers

Study Notes

Key Concepts in Biology

  • LUCA: Stands for Last Universal Common Ancestor, representing the earliest form of life from which all organisms descend.

  • Endosymbiotic Theory: Proposed by Lynn Margulis, this theory explains how eukaryotic cells evolved through a symbiotic relationship between early eukaryotic ancestors and certain prokaryotes.

  • Bacteria as Organelles: Proposes that certain bacteria were engulfed by ancestral eukaryotic cells and subsequently evolved into organelles, such as mitochondria and chloroplasts, essential for cellular function.

  • Viral Particle Composition: Made up of genetic material (either DNA or RNA) encapsulated in a protein coat, known as a capsid. This structure enables viruses to infect host cells.

  • Phage Definition: A phage is a type of virus that specifically infects bacteria, playing a significant role in microbial ecology and gene transfer.

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Description

Test your knowledge about the Last Universal Common Ancestor (LUCA) and the Endosymbiotic Theory with this quiz. Explore the evidence and processes that led to the evolution of bacteria, archaea, and eukaryotes.

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