Genetics

What were the phenotype of the F2 generation that mendal observed?

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2013-01-15 05:19:56
2013-01-15 05:19:56

Mendel observed phenotypes for seven contrasting characters segregating in to three is to one ratio mathematically and thus he propounded the principle dominance and recessive characters

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For monohybrid cross the genotype ratio in f2 generation would be 1:2:1 and phenotype ratio would be 3: 1


The recessive trait phenotype disappears in a one-trait test cross in the F1 generation. This phenotype can reappear in the F2 generation.


Although plants of the F1 generation have the phenotype of tall size, they must be heterozygous in genotype, therefore it is possible for F2 plants to have the phenotype of being short in stature.


You cross two organisms from the F1 generation to get the F2 generation.


F2 refers to the F2 generation in genetics. First you have the P1 generation, or the 1st parents to cross. Next, their offspring is called the F1 generation. When the F1 generation offspring cross, then the F2 generation appears.


Mendel observed that 315 seeds were round and yellow and another 32 were wrinkled and green, the two parental phenotypes.


The Generation after the F1 generation.


All of the F1 generation are heterozygous, therefore 100% exhibit the dominant phenotype. The F2 generation has a ratio of 1 homozygous dominant: 2 heterozygous: 1 homozygous recessive. This results in a phenotypic ratio of 3 dominant: 1 recessive.


No genes disappear in the F1 generation. Each of the F1 plants was heterozygous, having both a dominant and recessive alleles. The recessive phenotype disappears in the F1 generation because all members of that generation carry a dominant allele. In the F2 generation, the recessive phenotype will reappear.


No genes disappear in the F1 generation. Each of the F1 plants was heterozygous, having both dominant and recessive alleles. The recessive phenotype disappears in the F1 generation because all members of that generation carry a dominant allele. In the F2 generation, the recessive phenotype will reappear.


Yes - the generations are parent -> F1 -> F2


They differed both in genotype and phenotype. Mendel's F1 generation were all heterozygous Tall. Where his F2 generation had genotype frequencies as follows: 1TT:2Tt:1tt and the phenotype frequency 3tall:1short This is assuming you are referring to his experiments using height as the factor. His other experiments had similar results just replace all the uppercase T's with the dominant allele and the lowercase t's with the recessive trait.


F1 isw the first generation F2 is the second generation


The offspring of the P1 generation are called the F1, or first children of an organism. The offspring of the F1 generation are then called the F2 generation of the original organism.


The beginning generation, the parents of F1 generation and the grandparents of F2 generation.


The beginning generation, the parents of F1 generation and the grandparents of F2 generation.



short plznts were reappeared in the F2 generation because it was 5ara and trashy plants


The P generation is the parental, or original, generation. These are the individuals that are crossed to produce the F1 (Filial 1) generation. The offspring of the F1 generation are the F2 generation.




The F1 generation consists of the offspring of a cross between two parents; the F2 generation consists of the offspring of a cross between two individuals in the same F1 generation.



The expected phenotype for a Mendal F1 monohybrid cross is 3:1. Looking at heterozygous parents (F1) who share the same dominant trait, e.g. Straight tail.Crossing two heterozygous parents from the F1 generation results in an F2 generation that produces a 75% chance for the appearance of the dominant phenotype, of which two-thirds are heterozygous, and a 25% chance for the appearance of the recessive phenotype, giving the ratio 3;1.Inheritance pattern of dominant and recessive phenotypes when each parent is homozygous for either the dominant or recessive trait. All members of the F1generation are heterozygous and share the same dominant phenotype, while the F2generation exhibits a 3:1 ratio of dominant to recessive phenotypes.




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