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Dictionary » H » Homozygote

Homozygote

Definition

noun, plural: homozygotes

A nucleus, cell or organism where the alleles for a particular gene on each chromosome are identical.


Supplement

Homozygotes are true breeding organisms since the trait in question can be held constant as they produce the same phenotypic result.


Word origin: Greek ‘homo’ meaning ‘same’ + zygote.
Related forms: homozygous (adjective)

Compare: heterozygote
See also: zygosity


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Results from our forum


PCR & Agarose gel electrophoresis

... supposed to find two bands representing a heterozygote for a particular mutated receptor but I could only see one band representing the wild type homozygote. When other people did this experiment, they correclt yobserved 2 bands. Now I need to do a write up of this and why my particular experiment ...

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by Juanita1
Thu Aug 20, 2009 8:21 pm
 
Forum: Molecular Biology
Topic: PCR & Agarose gel electrophoresis
Replies: 3
Views: 122

Re: malaria

... is caused by recessive alleles, that's why a heterozygote person still has normal red blood cell, but is better protected against malaria than a homozygote dominant person. it is more common to find heterozygotes nowadays because of a mechanism called "stabilizing selection". it cuts ...

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by anitapangz
Fri Jun 19, 2009 3:08 am
 
Forum: General Discussion
Topic: malaria
Replies: 4
Views: 447

Re: sickle cell , malaria

... is caused by recessive alleles, that's why a heterozygote person still has normal red blood cell, but is better protected against malaria than a homozygote dominant person. it is more common to find heterozygotes nowadays because of a mechanism called "stabilizing selection". it cuts ...

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by anitapangz
Thu Jun 18, 2009 11:55 am
 
Forum: Human Biology
Topic: sickle cell , malaria
Replies: 2
Views: 365

Population Genetics

... of patches in the wool respectively. At both loci the normal allele was dominant to the recessive: ie black, patchy wool was a double recessive homozygote. Explain the genotypes for both parents and the expected genotype frequencies in the progeny.

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by tom56elliott
Tue May 27, 2008 5:29 am
 
Forum: Genetics
Topic: Population Genetics
Replies: 2
Views: 886

PCR

I am not sure what do you mean? this is the problem, mainly I can't figure out the detecting polymorphism, homozygote and hetrozygote?

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by charanT
Sat Apr 19, 2008 11:23 pm
 
Forum: Molecular Biology
Topic: PCR
Replies: 3
Views: 487
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