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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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Re:

Hint: F1 is heterozygous for Genetic Hypothesis 1; heterozygous/hemizygous for 2; and identical to F0 female line in 3. Thanks a mil, been searching everywhere for this answer! :)

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by mullet
Wed Dec 28, 2011 6:42 pm
 
Forum: Genetics
Topic: Phenotypes of Fruit Flies
Replies: 3
Views: 4104

sex linked dyhybrid cross? how to set up

... down information to points of facts: 1. Both conditions sex linked => on X chromosome 2. Both recessive => pronounced in males as they are hemizygous for x chromosome. Thus, “a non-hemophiliac, normal-visioned female, whose father had hemophilia and colorblindness” means that she is heterozygous, ...

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by Cat
Wed Nov 16, 2011 10:01 pm
 
Forum: Genetics
Topic: sex linked dyhybrid cross? how to set up
Replies: 8
Views: 3961

Phenotypes of Fruit Flies

Hint: F1 is heterozygous for Genetic Hypothesis 1; heterozygous/hemizygous for 2; and identical to F0 female line in 3. Do the crosses and see what you come up with. Good luck.

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by Cat
Fri Oct 07, 2011 1:27 am
 
Forum: Genetics
Topic: Phenotypes of Fruit Flies
Replies: 3
Views: 4104

Daltonism exercice

... G are on the same sexual chromosome X while B is autosomal. The lost of any of this gens result in Daltonism (result of an homozygous genotype or hemizygous recessive). A daltonic man marries a non daltonic woman and they have 4 girls and 4 boys. All the boys are sick while none of the girls are. ...

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by krosano
Fri Sep 23, 2011 4:03 pm
 
Forum: Genetics
Topic: Daltonism exercice
Replies: 1
Views: 2269

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: 1281
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