7.7: Common Ancestry Flashcards
1
Q
What three types of structural evidence support the common ancestry of all eukaryotes?
A
Membrane-bound organelles, linear chromosomes, and genes that contain introns
2
Q
What are the structural similarities between chloroplasts and mitochondria?
A
A double membrane, circular genomes and ribosomes, and the endosymbiotic theory
3
Q
What is the endosymbiotic theory?
A
It states that some eukaryotic cell organelles evolved from a free0living prokaryote
4
Q
Describe eukaryotic genomes.
A
Multiple linear chromosomes made up of tightly coiled DNA wrapped in histones with telomeres caps
Contains a nucleus
Large genomes
