The assumption that we have about characteristics and behaviour associated with "male" and "female" are called:
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Gender practices
Gender bending
Gender equality
Gender stereotypes

very vague question but I would go with Gender stereotypes because it's an assumption. Normally when your assuming somthing about someone it's a steriotype like assuming a person is a mean because he is an athlete

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

not sure if this is what you'r looking for nnew= nold