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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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genotype ratio and phenotype ratio in X linked allege

Ok I how would I write out the genotype and phenotype for a X link recessive gene when after the punnett square the two females are not effect and the two males are effected?

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by greenchicken
Wed Mar 18, 2015 8:57 pm
 
Forum: Genetics
Topic: genotype ratio and phenotype ratio in X linked allege
Replies: 0
Views: 117

Re: need help with some home work

... with either AA or Aa right? However, it is possible to get a baby with recessive phenotype. The answer is yes for the third question too! This is how it works. uNDER special circumstances, a gene might be influenced by modifications of the histone code and thus the level ...

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by Youngji
Sun Feb 01, 2015 1:14 pm
 
Forum: Genetics
Topic: need help with some home work
Replies: 2
Views: 1024

need help with some home work

Well,I am sorry to say this-But your first two answers are wrong! 1)See,recessive alleles can be expressed only and only in the homozygous condition.So ... allele THAT HAS BEEN EXPRESSED. For example: Lets say that there is a gene T which codes for the tallness character.So depending on the alleles ...

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by Athira
Fri Jan 16, 2015 7:33 am
 
Forum: Genetics
Topic: need help with some home work
Replies: 2
Views: 1024

I have got some BIG issues! forgive the long post

... further ado: Here they are: Indirect DNA testing : I know yo target the genes that are in severe proximity to our targeted gene and that you make ... is controlled by two alleles, Se and se. Se is dominant and se is recessive (or amorphic). Approximately 80% of people are secretors (SeSe ...

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by saddy51
Sun Jan 04, 2015 10:39 am
 
Forum: Genetics
Topic: I have got some BIG issues! forgive the long post
Replies: 1
Views: 1906

Recessive and dominant genetics - Pitx1 case study

Hey, so in my readings on recessive and dominant genetics, I have come across a question that is pretty basic but still stumping me (maybe from burning my ...

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by scienceguy914
Mon Sep 08, 2014 1:44 am
 
Forum: Genetics
Topic: Recessive and dominant genetics - Pitx1 case study
Replies: 0
Views: 3340
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