a. What is(are) the difference(s) between orthologs and paralogs? b. What are the main sources of variation?

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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a. What is(are) the difference(s) between orthologs and paralogs?
b. What are the main sources of variation?
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Transcribed Image Text:U+ 2:24 E * © e * ll 2 U 1.3 billion bases O 2. 300 million bases on 3. 100 million bases 4. 40 billion bases on 5 a. What is(are) the difference(s) between orthologs and paralogs? b. What are the main sources of variation? red I out of I 个 TOP II !!
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The principle of homology underpins comparative biology. A homologous trait is sometimes referred to as a homolog (also spelled homolog). The term "homolog" in genetics relates to both a protein and the gene (DNA sequence) that encodes it. Like physical traits, homology between protein or DNA sequences is characterized in terms of shared origin. There are many terms related to homology, out of which paralogs and orthologs are of much interest.

 

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