When two hybrids are crossed to get another F1.
F1 offspring obtained by monohybrid cross of AA and AA will be Aa.
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 first generation cross, known as F1 (filial 1), for homozygous (purebred) parents will be heterozygous - have one allele of each of their parents' traits. For example, the cross BB X bb would result in an F1 genotype of Bb.
P represents the parental generation in a genetic cross. F1 represents the offspring of the P generation.
It's a species of fish. A F1 is a cross between a Crucian Carp and a Common Carp.
The recessive trait phenotype disappears in a one-trait test cross in the F1 generation. This phenotype can reappear in the F2 generation.
when observing the F1 generation of a monohybrid cross
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Science sucks dick
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.
An F1 Labradoodle = Poodle crossed with a Labrador Retriever.F2 = F1 Labradoodle crossed with F1 LabradoodleF3 = F2 Labradoodle crossed with F2 Labradoodle etcWhen mixing generations, you add one to the lower generation parent, ie F4 cross F1 = F2, or F3 cross F2 = F3 etcF1B, F2B, F3B etc just means a backcross to one of the parent breeds, usually the poodle, thus F3B = F3 Labradoodle cross Poodle
http://en.wikipedia.org/wiki/Dihybrid_cross its a cross between two f1's