Genetics Terminology?

Genetics as it applies to evolution, molecular biology, and medical aspects.

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Does F1 generation in genetics only refer to the first generation of heterozygous offspring from pure-breeding parents?

Poll ended at Mon Mar 14, 2005 5:34 am

Yes, close to copyright infringement to use it any other way!
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No, F1 refers to the first generation of offspring from any known parental cross.
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Total votes: 3

ladybug
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Genetics Terminology?

Post by ladybug » Thu Mar 10, 2005 5:34 am

I am trying to get a consensus on this question: Is the term 'F1 generation' reserved solely for the heterozygous offspring of pure-breeding parents as in Mendel's experiments, or can it be used to name the first generation of offspring from any known parental cross? Is this like the old folks calling all denim jeans Levi's, even though Levi's is just one of many brands. People commonly refer to 'the F1' in the first way and others know what they mean, but is one always the other? :?

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MrMistery
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Post by MrMistery » Thu Mar 10, 2005 7:14 pm

From what I remember from last year when I took genetics, F1 basically means the first generation of offspring, no matter the parents
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Poison
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Post by Poison » Thu Mar 10, 2005 7:20 pm

F1 refers to the first generation of offspring from any known parental cross. no matter they are heterozygotes or homozygotes.
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biostudent84
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Post by biostudent84 » Thu Mar 10, 2005 7:47 pm

Agreed =)

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Post by Jelanen » Thu Mar 10, 2005 9:00 pm

The letter F used to designate generations from parental is actually short for filial, defined on google as: designating the generation or the sequence of generations following the parental generation It doesn't matter what the genotype of phenotype of the offspring fo the P generation are, they are always the F1 generation.
-Jelanen

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