Multiple Choice
In the context of the evolution of the eukaryotic cell (endosymbiotic theory), it is believed mitochondria evolved from which ancestral organism?
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1. Overview of Cell Biology
Evolution of the Cell
Multiple Choice
Which of the following is not an evolutionary mechanism responsible for organismal diversity?
A
Sexual Reproduction
B
Mutations
C
Endosymbiont theory
D
Horizontal Gene Transfer
Verified step by step guidance1
Understand the concept of evolutionary mechanisms: These are processes that contribute to the genetic variation and diversity of organisms over time.
Review the role of sexual reproduction: It increases genetic diversity through the combination of genetic material from two parents, leading to offspring with unique genetic makeups.
Examine mutations: Mutations are changes in the DNA sequence that can introduce new genetic variations, some of which may be beneficial and contribute to evolutionary change.
Consider horizontal gene transfer: This is the movement of genetic material between organisms other than through vertical transmission (from parent to offspring), and it can introduce new genes and traits into a population.
Clarify the endosymbiont theory: This theory explains the origin of certain organelles in eukaryotic cells, such as mitochondria and chloroplasts, as a result of symbiotic relationships, rather than a direct mechanism for generating organismal diversity.
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