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he crossed two pure lines
When Mendel crossed two hybrid plants for stem height, three fourths of the F1 plants always had tall stems. One fourth of the plants had short stems.Mendel always got a dazzling and great result. It was always 3/4 that were tall and 1/4 that were short
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.
tall.
The phenotypes present in the F1 generation depend on the phenotypes of the parental generation (and the environment). The F1 generation will display the dominant trait(s). For example, if T is tall and t is short, in the cross TT X tt the F1 generation will have the phenotype corresponding to the T allele (tall).
he crossed two pure lines
3:1(Apex)
he crossed two pure lines
he crossed two pure lines
I think not as tall is the dominant allele here.T = tallt = shortTT X ttall would beTt======and tall.
In a typical Mendel experiment, Mendel took two purebreeding lines (the parental generation) and crossed them to produce the 1st filial generation and sometimes would self cross these to produce the 2nd filial generation.
Statistical theory predicts the phenotype follows Pascal's triangle coefficients.
Statistical theory predicts the phenotype follows Pascal's triangle coefficients.
When Mendel crossed two hybrid plants for stem height, three fourths of the F1 plants always had tall stems. One fourth of the plants had short stems.Mendel always got a dazzling and great result. It was always 3/4 that were tall and 1/4 that were short
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.