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Recessive gene

Recessive gene

A gene that is expressed onlywhen it is present in two copies or if theother copy is missing.


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What makes dominant allele dominant?

Yes, it is possible that there are more than two different alleles for a gene. The most popular example, that comes into my mind, is blood types (AB0-system). But it is not possible that more than one is recessive to all the others - what would happen if two different recessive genes ...

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by Tricho
Sun Mar 09, 2014 7:19 pm
 
Forum: Genetics
Topic: What makes dominant allele dominant?
Replies: 5
Views: 1084

What makes dominant allele dominant?

Can a gene have e.g. three alleles for three different colors. Which is (are) dominant? Must there be a dominant one? Can all be recessive?

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by kau
Sun Mar 09, 2014 3:47 pm
 
Forum: Genetics
Topic: What makes dominant allele dominant?
Replies: 5
Views: 1084

Human Gamete Compatibility Going Backwards

... be sufficient to produce an organism as it contains full complement of genes. However, because some critical genes can be recessive, two copies are required. This leads to the requirement for the homologous gene from ...

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by Cat
Sat Jan 11, 2014 7:56 pm
 
Forum: Evolution
Topic: Human Gamete Compatibility Going Backwards
Replies: 5
Views: 1512

What makes dominant allele dominant?

It's a matter of gene expression. The phenotype is the expression of the gene. The pathway to expression ... isn't actually expressed, leaving the organism with a default phenotype. The dominant/recessive/codominant description can vary from the microbiological level to the organismal ...

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by wildfunguy
Mon Sep 30, 2013 1:06 am
 
Forum: Genetics
Topic: What makes dominant allele dominant?
Replies: 5
Views: 1084

Do chromosomses ever get competitive?

Actually, there could be a pathway between the dominant and recessive protein products. I will speculate about how such a pathway might ... not genotypes, the heterozygous genotype persists. Then, in comes a new gene from somewhere else in the genome. It produces protein product "C". ...

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by wildfunguy
Sun Sep 29, 2013 2:50 pm
 
Forum: Cell Biology
Topic: Do chromosomses ever get competitive?
Replies: 9
Views: 4291
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