Dictionary » H » Homology

Homology

Definition

noun, plural: homologies

(1) A degree of similarity, as in position or structure, and that may indicate a common origin; a correspondence of structure

(2) (evolutionary biology) A state of similarity in structure and anatomical position but not necessarily in function between different organisms indicating a common ancestry or evolutionary origin

(3) (genetics) A condition denoting to the pair of chromosomes having corresponding genes for a particular trait or characteristic


Supplement

Word origin: Greek homologia agreement, from homologos agreeing

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Human Gamete Compatibility Going Backwards

... is that because of the ethical considerations compatibility of humans with other species was not and probably will never be tested. Your point on homology, however, may or may not be relevant. Theoretically, haploid genome should be sufficient to produce an organism as it contains full complement ...

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by Cat
Sat Jan 11, 2014 7:56 pm
 
Forum: Evolution
Topic: Human Gamete Compatibility Going Backwards
Replies: 9
Views: 4388

cell specific markers

... it is possible that every single coding gene between one individual and another could be slightly (or greatly) different, even if there is 99.9% homology in overall genetic sequence. Some of this huge genetic diversity breaks out in differences between populations. These genetic populations (using ...

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by MarkHolland
Sat Mar 30, 2013 3:16 pm
 
Forum: Cell Biology
Topic: cell specific markers
Replies: 3
Views: 6095

Re: mutations and dependencies

... argue that, even if archeologists found a puzzle piece that didn't fit, they might force it into the puzzle anyway. I know next to nothing about homology, so I can't speak on that any further. The 'theory' of 'evolution' again is not a 'theory' (not change in gene frequency, or any change in ...

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by jinx25
Wed Feb 20, 2013 1:13 am
 
Forum: Evolution
Topic: mutations and dependencies
Replies: 29
Views: 21264

Re: mutations and dependencies

... argue that, even if archeologists found a puzzle piece that didn't fit, they might force it into the puzzle anyway. I know next to nothing about homology, so I can't speak on that any further. However, genetics provides the test as to whether we are assembling the archeological puzzle pieces ...

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by wildfunguy
Tue Feb 19, 2013 7:49 pm
 
Forum: Evolution
Topic: mutations and dependencies
Replies: 29
Views: 21264

Why would the identical amino acids region of certain specie

Why would the identical amino acids region of certain species be used as a basis for a primer design? I know they share homology and are very conserved but why is it used as a primer?

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by TToe
Mon Feb 18, 2013 10:37 am
 
Forum: Genetics
Topic: Why would the identical amino acids region of certain specie
Replies: 2
Views: 2735
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