Mendel's First Law:
The Law of Segregation states that when any individual produces gametes, the copies of a gene separate, so that each gamete receives only one copy.
Gene - small segment in the chromosome where specific genetic information is stored.
Allele - different forms of a gene occupying the same relative positions on a pair of homologous chromosomes.
Phenotype - trait that can be seen
Genotype - combination of genes in an organism
Homozygous - two alleles controlling the trait are the same
Heterozygous - two alleles controlling the trait are different
Dominant allele - expresses itself and gives the same phenotype in both homozygous and heterozygous conditions.
Recessive allele - does not express itself in the heterozygous condition, and only expresses itself in the homozygous condition (tt).
