What does F1 or F2 stand for?
PLS TELL MEEE

When displaying crossings between two parental organisms, the resulting offspring are referred to as F1. If those offspring are crossed between themselves, the resulting generation is called F2. ... The F stands for “fili” meaning “sons” or “offspring”.

Explanation:

image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

explanation:

answer: "circumcision is a common procedure in which the skin covering the tip of the penis is surgically removed."