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Dictionary » C » Carrier

Carrier

Definition

noun, plural: carriers

(general)
A person or object that transports or conveys.

(immunology)
An asymptomatic person or animal harboring the pathogen, and acts as a vector transmitting the pathogen to others.

(genetics)
(1) A heterozygous individual bearing an unexpressed defective gene.

(2) An organism possessing a recessive gene for a trait, hence, not expressing the trait.

(chemistry)
A catalytic substance that serves as a vehicle for an element or group of atoms from one compound to another.


Supplement

(genetics) A genetic carrier pertains to an organism carrying an unexpressed defective gene for a recessive trait but when mated with another carrier can produce a homozygous offspring that expresses the recessive trait.


Word origin: to carry + -er.

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Results from our forum


what is the chemical composition of a carrier protein and ho

pls help me!! what is the chemical composition of a carrier protein and how does this facilitates its function?

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by euniceleekeng
Sun Aug 16, 2009 5:47 am
 
Forum: General Discussion
Topic: what is the chemical composition of a carrier protein and ho
Replies: 1
Views: 40

Pedigree chart question

... a little advice/help. I have to do a pedigree chart for 101 (due tonight), and its just for colorblindness. My problem is, I have a colorblind carrier female mating with a normal vision male, and from them there are two offspring (male and a female). When I do the Punnet squares for this, I ...

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by juicymt
Sun Jul 12, 2009 10:22 pm
 
Forum: Genetics
Topic: Pedigree chart question
Replies: 0
Views: 193

Genomic Imprinting In Humans (and classical genetics)

... gene expression, but my question is, what is the difference between it and normal expression? eg//ALBINISM AA-Normal pigmentation Aa-Carrier but no albino phenotype aa-Albinism In genomic imprinting, it says that one allele is masked by the other one, but isn't that the same as the ...

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by stevoevo22
Fri Jul 03, 2009 2:14 am
 
Forum: Genetics
Topic: Genomic Imprinting In Humans (and classical genetics)
Replies: 7
Views: 342

Re: Genes

Sickle-cell disease is a good example of pleiotrophy, the carrier of this recessive trait will have a phenotype of lets say Ss but they do not have Sickle-cell symptoms like the SS phenotype. However even in the Ss type some sickle-cells are created this ...

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by bortz99
Fri Jun 26, 2009 10:31 pm
 
Forum: Genetics
Topic: Genes
Replies: 8
Views: 2748

Anybody knows how stable is ssDNA??

... It's the product from degenerated PCR so i guess it's ssDNA. I labeled the probe with DIG, keep in 50%formamide and hybridization buffer with carrier DNA. I was so stupid that I left it overnight at my bench. Anybody has and information about how stable is ssDN at room temperature? especially ...

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by primary
Tue Jun 09, 2009 11:08 pm
 
Forum: Molecular Biology
Topic: Anybody knows how stable is ssDNA??
Replies: 2
Views: 173
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