A cross between members of the F1 generation (Tt x Tt), results in the genotypic ratio of 1TT:2Tt:1tt genotypes in the F2 generation. Because the tall allele is dominant, the phenotypic ratio would be 3 tall:1 short in the F2 generation.
The reason why short plants reappeared in Mendel's F2 generation of pea plants was because their short trait was heterozygous. Both parents carriedÊthat recessive gene, so they passed it on to their offspring.
reappears in some plants in the F2 generation
f2 generation
taken from a science textbook- Scientists today call these parent plants the parental generation, or P generation. The offspring from this cross are the first filial generation or the F1 generation. The word filial comes from filila and flilius, the Latin words for daughter and son. When the plants in the F1 generation were full-grown, Mendel allowed them to self-pollinate. Surprisingly, the plants in the F2 gneration were a mix of tall AND short plants. The shortness trait had reappeared even though none of the F2 parent plants were short. Mendel counted the tall and short plants. About three fourths of the plants were tall, while one fourths were short.
3.1
A cross between members of the F1 generation (Tt x Tt), results in the genotypic ratio of 1TT:2Tt:1tt genotypes in the F2 generation. Because the tall allele is dominant, the phenotypic ratio would be 3 tall:1 short in the F2 generation.
3/4th of them do
In Mendel's experiments, recessive traits were hidden in the F1 generation. When he crossed pure-breeding plants with contrasting traits, all offspring in the F1 generation exhibited the dominant trait. It was only in the F2 generation, produced by self-pollinating the F1 plants, that the recessive traits reappeared in a 3:1 ratio alongside the dominant traits.
The reason why short plants reappeared in Mendel's F2 generation of pea plants was because their short trait was heterozygous. Both parents carriedÊthat recessive gene, so they passed it on to their offspring.
When Mendel crossed the offspring generation, specifically the F1 generation (which displayed the dominant trait), with each other, the trait for shortness (the recessive trait) reappeared in the F2 generation. This occurred in a predictable ratio, typically 3:1, where three plants exhibited the dominant trait and one exhibited the recessive trait. Thus, the trait for shortness was not lost; it remained hidden in the F1 generation but became visible once again in the F2 generation.
reappears in some plants in the F2 generation
first-generation plants
F1
f2 generation
In Mendel's experiments with pea plants, the recessive trait reappeared in the F2 generation due to the segregation of alleles during gamete formation. When he crossed two heterozygous plants (F1 generation), the alleles for the dominant and recessive traits segregated independently, allowing for the possibility of offspring inheriting two recessive alleles. Consequently, the recessive trait manifested in some of the F2 generation plants when they received one recessive allele from each parent. This demonstrated the principles of inheritance, including the re-emergence of recessive traits after skipping a generation.
100% percent of the plants expressed the dominate trait ........................................................................................ what do u get when u mix purple with purple you get 100% purple :) simple peace of cake !
taken from a science textbook- Scientists today call these parent plants the parental generation, or P generation. The offspring from this cross are the first filial generation or the F1 generation. The word filial comes from filila and flilius, the Latin words for daughter and son. When the plants in the F1 generation were full-grown, Mendel allowed them to self-pollinate. Surprisingly, the plants in the F2 gneration were a mix of tall AND short plants. The shortness trait had reappeared even though none of the F2 parent plants were short. Mendel counted the tall and short plants. About three fourths of the plants were tall, while one fourths were short.