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Dihybrid

Definition

noun, plural: dihybrids

(1) The offspring of a dihybrid cross, i.e. a genetic cross involving two gene loci, each with two different alleles

(2) An individual heterozygous for two gene loci of interest


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Word origin: Greek di- (two, twice, double) + Latin hybrida, from ibrida (offspring)

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Double heterozygous cross HELP

... B Cre/+ would the progeny be: 25% Gene A fl/+ 50% Gene A fl/+; Gene B Cre/+ 25% Gene B Cre/+ ??? or I need to do the 16 square Punnett for this dihybrid cross? if so what would be the possibilities? Thank you in advance Suzie

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by Suzie8
Thu Jan 29, 2015 11:46 pm
 
Forum: Genetics
Topic: Double heterozygous cross HELP
Replies: 0
Views: 299

Somatic Fusion and Reproduction

... just a few quick questions first: Do somatic fusion hybrids display characteristics of both cell donors at the same time? Or is it similar to a dihybrid cross, where some plants would show one characteristic and another one another? Which leads on to another question... If I were to successfully ...

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by Thomas9666
Thu Jan 09, 2014 5:15 pm
 
Forum: Cell Biology
Topic: Somatic Fusion and Reproduction
Replies: 0
Views: 2919

Genetics problems

... was heterozygous for pod shape and homozygous recessive for plant size: a. What is the phenotype of this plant? b. If this plant was crossed to a dihybrid (heterozygote), what would be the phenotypic ratio of pod shape among the progeny? c. What would be the phenotypic ratio of plant size? d. ...

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by jamesandrew
Fri Jan 18, 2013 7:20 am
 
Forum: Genetics
Topic: Genetics problems
Replies: 3
Views: 4966

Mendelian Genetics

... was heterozygous for pod shape and homozygous recessive for plant size a. What is the phenotype of this plant? b. If this plant was crossed to a dihybrid (heterozygote), what would be the phenotypic ratio of pod shape among the progeny? c. What would be the phenotypic ratio of plant size? d. ...

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by Masher123
Sun Sep 09, 2012 3:40 am
 
Forum: Genetics
Topic: Mendelian Genetics
Replies: 2
Views: 6072

What is true breeding?

... I am a little confused what true breeding is. Is it something like this: RR x RR or RR x rr Rr x Rr is a mono hybrid cross, and RrBb x RrBb is a dihybrid cross correct?

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by MissionCO
Sun May 06, 2012 8:50 am
 
Forum: Genetics
Topic: What is true breeding?
Replies: 3
Views: 17646
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