Dictionary » V » Variant

Variant

variant

Something which differs in form from another thing, though really the same; as, a variant from a type in natural history; a variant of a story or a word.

Origin: Cf. F. Variante. (biology) a group of organisms within a species that differ in trivial ways from similar groups; a new strain of microorganisms.


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Blood Genetics help please

... A, B and O antigens of the human blood system are sugars that can be found on the surface of red blood cells. The alleles A, B and O refer to the variant forms of the proteins (enzymes) that produce the sugar antigens. The O allele enzyme is non-functional, so that the basic sugar antigen is unaltered. ...

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by girlslovebarbie
Sat Feb 01, 2014 2:58 pm
 
Forum: Genetics
Topic: Blood Genetics help please
Replies: 2
Views: 688

blank and substrate control give OD reads

Hi there...I'm new here. Hopefully all of u can solve my problem. I'm working on screening of xylanase variants to look for the better variant than the wild type in hydrolysis kenaf. the reaction is done in 96 deep well plate by adding substrate (kenaf) + buffer (50mM sodium ...

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by intandiana
Wed Jan 15, 2014 7:21 am
 
Forum: Molecular Biology
Topic: blank and substrate control give OD reads
Replies: 9
Views: 1159

SNV vs point mutation?

... mutation. I seemed to think that an SNV and a point mutation were the same thing. So, what is the difference between a "single nucleotide variant" (SNV) and a point mutation? I can't seem to get it.

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by jomjamson
Sat Jan 11, 2014 5:51 am
 
Forum: Molecular Biology
Topic: SNV vs point mutation?
Replies: 1
Views: 432

Re: Beneficial mutations vs harmful

Natural selection; survival to reproduce. Collections of genes (or more accurately a given gene variant) with better fitness, tend to survive to reproduce more often than those without. Basically harmful mutations tend to lower fitness, whereas beneficial mutations tend ...

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by NMLevesque
Fri Nov 22, 2013 6:51 pm
 
Forum: Evolution
Topic: Beneficial mutations vs harmful
Replies: 12
Views: 3811

Re: How Genes/expression Determine Organism Shape

... other aspect of your question - genetic regulation of organism's size: Imagine this: Gene1 = produces growth hormone Gene 1 allele A (which is a variant of this gene) - can make 100 units of hormone per hour. Gene 1 allele B - can make only 50 units of hormone per hour. Gene 1 allele C - makes ...

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by Cat
Mon May 20, 2013 1:41 pm
 
Forum: Genetics
Topic: How Genes/expression Determine Organism Shape
Replies: 2
Views: 4099
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