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Point of regard

point of regard --> point of fixation

The point on the retina at which the rays coming from an object regarded directly are focused.

Synonym: point of regard.


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A theoretical question - Genetic manipulation

I want to point out, in regard to my last question, I understand the basic idea of t and b cells, y protiens and phagocytes but I'm not ...

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by Maitreya
Sat Dec 07, 2013 7:01 pm
 
Forum: Microbiology
Topic: A theoretical question - Genetic manipulation
Replies: 4
Views: 4851

Theories - Origin of Life

... Nobody as far as I am aware denies that these changes take place. The point is do these changes lead to new species formation. (See the links I ... the body plan of the fruit fly has changed throughout it's existence, regardless of how rapid its generation time may be. Segmentation is perhaps ...

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by AstraSequi
Tue Mar 27, 2012 2:32 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929660

Re: Theories - Origin of Life

... trying to misquote me and introduce straw man arguments. My point was and is, if you wish to point to “beneficial examples” then keep ... by gene duplication is old news. As far as I know, researchers still regard the origin of hemoglobin clusters by duplication as a matter of fact. ...

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by Luxorien
Fri Mar 23, 2012 7:22 am
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929660

Re: Theories - Origin of Life

... to protect against against malaria. So to ensure clarity of the point I raised. It is a fact that fetal hemoglobin protects the unborn child ... restores partial protection to offset a particular disease, and you regard this as a beneficial mutation? It is an interesting take on things, ...

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by scottie
Sun Mar 11, 2012 4:40 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929660

Theories - Origin of Life

... is tetramer. There are four subunits: two betas and two alphas. The point mutation I referred to earlier causes the beta chains to be wonky. ... determines whether a mutation is harmful or neutral. Many biologists regard all changes in genetic make up as mutations. Some are random errors/damage ...

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by Luxorien
Sat Mar 10, 2012 5:03 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929660
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