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Genotypic ratio

Definition

noun

Pattern of offspring distribution according to genotype (i.e. the genetic constitution determining the phenotype of an organism)


Supplement


The genotypic ratio describes the number of times a genotype would appear in the offspring after a test cross. For example, a test cross between two organisms with same genotype, Rr, for a heterozygous dominant trait will result in offspring with genotypes: RR, Rr, and rr. And in this example, the predicted genotypic ratio is 1:2:1.


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genotypic & phenotypic ratios?

after crossing I have: re re re re (neither is dominant) how do I find the ratio?

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by danceislife
Thu Dec 06, 2012 8:18 pm
 
Forum: Genetics
Topic: genotypic & phenotypic ratios?
Replies: 2
Views: 2079

assignment help: genetic cross

... on. After you have done all the possibilities to fill the table in your genotypic ratio should be 9:3:3:1 (9 curve and hair, 3 straight and hair, 3 curve and no hair, 1 straight ...

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by Kezzer
Sun Jan 02, 2011 4:42 pm
 
Forum: Genetics
Topic: assignment help: genetic cross
Replies: 6
Views: 3064

Punnet Square - Monohybrid Out-Cross

... dpy-5(e61) / dpy-5(e61) Male: dpy-5(e61) / dpy-5(+) I've gotten the genotypic ratio of the F1s (2 dpy-5(e61) : 2 dpy-5(+)), and phenotypic ratio of 1:1 (assuming dpy-5(e61) ...

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by Roxlo
Sun Nov 01, 2009 3:00 am
 
Forum: Genetics
Topic: Punnet Square - Monohybrid Out-Cross
Replies: 1
Views: 1989

Re:

I guess the GENOtypic ratio is 1:2:2:4:1:2:1:2:1 (in order, as you wrote) Did you mean phenotypic ratio? Oh yehh... you're right, the ...

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by bio1fall
Thu Oct 15, 2009 11:55 pm
 
Forum: Genetics
Topic: Genotypic Ratio
Replies: 2
Views: 3593

Genotypic Ratio

I guess the GENOtypic ratio is 1:2:2:4:1:2:1:2:1 (in order, as you wrote) Did you mean phenotypic ratio?

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by JackBean
Thu Oct 15, 2009 5:19 am
 
Forum: Genetics
Topic: Genotypic Ratio
Replies: 2
Views: 3593
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