. Genotype- The whole genetic makeup of an organism "AA" made up of 2 gametes A and A
. Genes - a section of DNA that codes for a protein, different forms of these are called alleles "A", "a" these are two of the SAME gene "A", "B" these are two DIFFERENT genes
. Phenotype- which gene is expressed and is vissible
Gametes

. Sperm and egg
. Half the genetic code of an organism
Possible gametes of AA monohybrid = A, A
Possible gametes of AaBb Dihybrid = AB, Ab, Ab, aB
Autosomal linkage

2 different genes have the Same Loci (Location) on the same chromosome so are very close together and less likely to be seperated during crossing over so are inherited together like brown hair and brown eyes
