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Dictionary » H » Hemizygous

Hemizygous

Definition

adjective

(1) Characterized by having one or more genes without allelic counterparts.

(2) Pertaining to a diploid cell with only one copy of a gene instead of the usual two copies.


Supplement

For example, the male is hemizygous for most X chromosome genes.


Word origin: Greek hēmi- half.
Related forms: hemizygosity (noun), hemizygote (noun).

Compare: homozygous, heterozygous


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Fruit fly genetics help?

... cause I already know. So back on topic, what kind stuff can I fill up my paper with? Buzzwords like homozygous, autosomal, sex-linked, recessive, hemizygous. Please, help. lol.

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by retard
Thu Oct 09, 2008 4:04 pm
 
Forum: Genetics
Topic: Fruit fly genetics help?
Replies: 1
Views: 664

X-linked inheritance

always infected, because they have only one chromosome. When the gene is present on that chromosome, it is expressed. The condition is known as hemizygous.

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by MrMistery
Mon Dec 17, 2007 2:09 pm
 
Forum: Genetics
Topic: X-linked inheritance
Replies: 4
Views: 802

Sex-Linked Traits and Autosomal Genes

For each autosome you have two copies(homologs), but is that always the case for sex chromosomes? What happens to a hemizygous individual?

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by mith
Wed Nov 07, 2007 8:49 pm
 
Forum: Genetics
Topic: Sex-Linked Traits and Autosomal Genes
Replies: 5
Views: 2809

Anyone know much on Hemizygous?

"While men are less hemizygous then women because even though they have 2 different type of Chromosome XnY, they both are genetically active." Yes, partly. The entire active X chromosome in women is effectively hemizygous because ...

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by wbla3335
Fri Jul 27, 2007 10:32 am
 
Forum: Genetics
Topic: Anyone know much on Hemizygous?
Replies: 10
Views: 1700

Anyone know much on Hemizygous?

... statements that because females are XX they are homozygous for the X chromosome is misleading to them. Your statement that females are effectively hemizygous is accurate. Even though one X is inactivated, the other X is still there, so saying that the individual, or the cell, is homozygous for ...

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by PoOr
Fri Jul 27, 2007 10:07 am
 
Forum: Genetics
Topic: Anyone know much on Hemizygous?
Replies: 10
Views: 1700
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