Scenario The First Prokaryotic Cells Gave Rise to Eukaryotic Cells Approximately

question 21

Multiple Choice

Scenario
The first prokaryotic cells gave rise to eukaryotic cells approximately 1.7 billion years ago. The structure of eukaryotic cells today suggests how they might have evolved from their prokaryotic ancestors. Scientists examining mitochondria and chloroplasts now think that these organelles were probably free-living prokaryotes before becoming a part of eukaryotic cells long ago.
-What evidence suggests that mitochondria might have evolved before chloroplasts?

• A)Mitochondria can sometimes divide to produce chloroplasts.
• B)Only mitochondria have their own DNA.
• C)Some mitochondria have chloroplasts inside of them.
• D)Almost all eukaryotes have mitochondria but only some cells have chloroplasts.

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Life Cycle

The series of stages that an organism, product, or system goes through from its inception to its termination or end.

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GE Business Screen

A strategic planning tool similar to the BCG matrix, developed by General Electric, used for assessing the various business units or products in a company's portfolio.