Dictionary » H » Heterozygous

Heterozygous

Definition

adjective

(1) Of, or pertaining to an individual (or a condition in a cell or an organism) containing two different alleles for a particular trait.

(2) Having dissimilar alleles that code for the same gene or trait.


Supplement

Example: a zygote having one dominant allele and one recessive allele, i.e. Aa, for a particular trait.


Word origin: G. h├ęteros the other of two, other, different + zygous, which pertains to a zygote.

Related forms: heterozygosity (noun).
Related phrases: heterozygous recessive, heterozygous dominant.

Compare: homozygous.
See also: allele.


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Double heterozygous cross HELP

Hi, I was wondering if any of you is familiar with the Cre lox method for knocking out the gene in the mice. I need to cross the parents and I would like what would be their progeny like, the possibilities. So I need to cross: female mouse 'Gene A' fl/+; 'Gene B' Cre/+ X male mouse 'Gene A' fl/+;Gen...

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by Suzie8
Thu Jan 29, 2015 11:46 pm
 
Forum: Genetics
Topic: Double heterozygous cross HELP
Replies: 0
Views: 292

need help with some home work

... T which codes for the tallness character.So depending on the alleles which have been expressed-the person can turn out to be tall if he has-Tt(heterozygous) or TT(homozygous).-Here T is the dominant trait over t. whereas the person will become dwarf only if both the alleles for the gene is ...

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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: 916

need help with some home work

... man and a woman that are both homozygous for a dominant allele produce a heterozygote baby? I said yes here 3. Can A dominant homozygous man and a heterozygous woman produce a recessive baby? I said no here Can anyone tell me if I am right and Why?

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by scoe
Thu Jan 15, 2015 6:55 pm
 
Forum: Genetics
Topic: need help with some home work
Replies: 2
Views: 916

Re: Mendel's Law

... a zygote might contain one allele for white flowers and one allele for red flowers. The plant that develops from that zygote would said to be heterozygous for that trait since its gene for flower color has two different alleles. If the zygote contains a gene with two identical alleles, it ...

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by Sheppie
Wed Dec 03, 2014 7:41 am
 
Forum: Genetics
Topic: Mendel's Law
Replies: 2
Views: 2419

Genetics Pedigree Help Required

... this is an autosomal dominant or an autosomal recessive pattern? Can you not have, if it is autosomal dominant, each affected individual as heterozygous and each unaffected individual homozygous recessive; and if it is autosomal recessive you reverse it so that each affected individual is ...

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by TheBell
Fri Mar 21, 2014 8:49 pm
 
Forum: Genetics
Topic: Genetics Pedigree Help Required
Replies: 0
Views: 3929
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