homozygous dominant and homozygous recessive
I believe this is referring to the generations in parent crosses. You are first given two genotypes to cross. This is the parent generation. When you use a punnett square to cross the parent generation (P) you are given the possible genotypes of the first generation of offspring (G1)
the original parents in a genetic cross are reffered to as the P generation
P represents the parental generation in a genetic cross. F1 represents the offspring of the P generation.
F1 and F2
F1 Generation
I believe this is referring to the generations in parent crosses. You are first given two genotypes to cross. This is the parent generation. When you use a punnett square to cross the parent generation (P) you are given the possible genotypes of the first generation of offspring (G1)
The dominant traits, as shown by the F1-generation's display of complete dominance, are long fins and green color. The parents must have been: long-finned red guppy: FFcc short-finned green guppy: ffCC filial generation: ALL FfCc
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 original parents in a genetic cross are reffered to as the P generation
p generation
P represents the parental generation in a genetic cross. F1 represents the offspring of the P generation.
F1 stands for 1st Filal generation. In short this is the first generation of offspring from different parents.The terminology is often used in genetics and plant breeding to describe the first generation.In more simple terms a baby can be seen as the F1 generation of both of its parents.
The beginning generation, the parents of F1 generation and the grandparents of F2 generation.
Generation P - film - was created on 2011-04-14.
P Generation is when parental offspring are derived in studies of inheritance.
F1 and F2
The simplest way that two plants can have different genotypes, but the same phenotype, is if they both have a dominant allele for the same trait. For example, the genotypes Pp and PP, will both produce the phenotype created by P (for example, pink coloured petals). This is because P is dominant to p, and will always be expressed. Other ways that the same phenotype can be created from different genotypes are when the environment affects the traits, or when the trait is controlled by more than one gene.