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Recessive Allele

A recessive Allele results in expression of the recessive characteristic if there is no dominant allele present. Trait in organism wont appear in the presence of a dominant allele.


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Pedigree Analysis Question

... I am then asked to calculate the probability that either A or B have a recessive allele. 4) Finally, I need to find the probability that A&B will produce a child that has ...

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by ApothemCyte
Sat Jan 18, 2014 8:44 pm
 
Forum: Genetics
Topic: Pedigree Analysis Question
Replies: 0
Views: 928

I Need Help understanding gametes, genotypes and phenotypes

... doing more work than it is asking you to do. Post Two: lowercase i is recessive and uppercase I is dominant, but there are actually two codominant alleles. I^A is dominant allele for type A, and I^B is dominant allele for type B. There is ...

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by wildfunguy
Tue Oct 29, 2013 3:25 pm
 
Forum: Genetics
Topic: I Need Help understanding gametes, genotypes and phenotypes
Replies: 5
Views: 3821

What makes dominant allele dominant?

... biochemical interactions. For whatever reason, the expression of one allele overrides the expression of the other. In some instances, it is because ... expressed, leaving the organism with a default phenotype. The dominant/recessive/codominant description can vary from the microbiological level ...

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by wildfunguy
Mon Sep 30, 2013 1:06 am
 
Forum: Genetics
Topic: What makes dominant allele dominant?
Replies: 5
Views: 3683

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 arise. Suppose there are two versions of the allele that are initially codominant. I will call their protein products "A" ...

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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: 6653

Population genetics - make inferences from allele frequency

Hi if a mean allele frequency among multiple populations across a whole species distribution is 0.75 or 0.5, can you make any inference about something like dominant-recessive relationship or lethal homozygotes? I assume random mating (no sexual selection), diploid, ...

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by Young
Sun Aug 25, 2013 10:52 pm
 
Forum: Genetics
Topic: Population genetics - make inferences from allele frequency
Replies: 1
Views: 1279
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