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Neutral

neutral

1. Not engaged on either side; not taking part with or assisting either of two or more contending parties; neuter; indifferent. The heart can not possibly remain neutral, but constantly takes part one way or the other. (Shaftesbury)

2. Neither good nor bad; of medium quality; middling; not decided or pronounced. Some things good, and some things ill, do seem, And neutral some, in her fantastic eye. (Sir J. Davies)

3. (Science: biology) neuter. See Neuter.

4. (Science: chemistry) Having neither acid nor basic properties; unable to turn red litmus blue or blue litmus red; said of certain salts or other compounds. Contrasted with acid, and alkaline.

(Science: chemistry) Neutral axis, Neutral surface, a salt formed by the complete replacement of the hydrogen in an acid or base; in the former case by a positive or basic, in the latter by a negative or acid, element or radical. Neutral tint, a bluish gray pigment, used in water colours, made by mixing indigo or other blue some warm colour. The shades vary greatly. Neutral vowel, the vowel element having an obscure and indefinite quality, such as is commonly taken by the vowel in many unaccented syllables. It is regarded by some as identical with the u in up, and is called also the natural vowel, as unformed by art and effort.

Origin: L. Neutralis, fr. Neuter. See Neuter.


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Polymorphism and Mutation

What is the difference between Gene Polymorphism and Gene Mutation :?: :?: :?: please give a clear concept. :|

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by Helics
Tue Mar 04, 2014 4:33 pm
 
Forum: Molecular Biology
Topic: Polymorphism and Mutation
Replies: 2
Views: 227

How Does Natural Selection Create Ordered Variation?

... the environment will just as likely negate the effects of the previous beneficial mutation. As you know, mutations can be beneficial, harmful or neutral. This is based entirely on the environment. So therefore a species could evolve something beneficial (like beetles on a windy island getting ...

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by Doom
Tue Jan 21, 2014 11:35 pm
 
Forum: Evolution
Topic: How Does Natural Selection Create Ordered Variation?
Replies: 7
Views: 1391

How Does Natural Selection Create Ordered Variation?

... the environment will just as likely negate the effects of the previous beneficial mutation. As you know, mutations can be beneficial, harmful or neutral. This is based entirely on the environment. So therefore a species could evolve something beneficial (like beetles on a windy island getting ...

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by Doom
Wed Jan 15, 2014 6:18 am
 
Forum: Evolution
Topic: How Does Natural Selection Create Ordered Variation?
Replies: 7
Views: 1391

Re: Theories - Origin of Life

FYI - I am one biologist that disagrees… Most mutations are neutral. It depends on whether you're talking about mutations to the genotype or mutations to the phenotype. Genotype. Change in phenotype is the result of the mutation. There can be no "mutations ...

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by Luxorien
Sat Nov 16, 2013 7:32 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755206

Re:

... another important number; the deletrious mutations per generation, as being a bit over 2. Some implications... the great majority of mutations are neutral; such mutations will accumulate generation by generation, and many will become fixed. This is the basis of "genetic drift". Another ...

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by ChrisHoStuart
Tue Oct 15, 2013 2:19 pm
 
Forum: Evolution
Topic: Beneficial mutations vs harmful
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