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M13) DNA Ancestry

The universal presence of DNA is evidence for common ancestry.

QuestionAnswer
What is the fundamental chemical of all living things? DNA
When was DNA believed to have been formed? 3 billion years ago.
What determines the characteristic of offspring? DNA
Why does DNA have a great variety of structure? Because of the different nucleotide arrangements.
What are the two main roles of the DNA molecule? 1) To pass on the hereditary characteristics from generation to generation. 2) To code for the production of other vital molecules in organisms, particularly proteins.
What does evolution involve? The transformation of life on earth from its earliest forms to the vast diversity we see today.
What is the relationship between DNA and evolution theory? The fact that DNA is universal in all species is the strongest evidence that all life forms evolved from a common ancestor.
What have all of life's diverse species evolved from? Prokaryotes about the size of some bacteria.
How can evolution be recognized? Changes in DNA structure, gene structure and the proteins and characteristics coded for by the DNA.
How did prokaroytes evolve into the complex organisms of today? By the modification and diversifying of the DNA sequence.
Created by: MahaliaMcD
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