| A | B |
|---|
| genes | located on chromosomes |
| linked genes | do not undergo independent assortment |
| recombinants | individuals with new combinations of genes |
| incomplete dominance | the active allele does not compensate for the inactive allelle |
| gamtes | contain a single copy of each gene |
| zygote | fertilized egg |
| genetics | the branch of biology that studies heredity |
| alleles | different forms of a gene |
| gametes | reproductive cells |
| genotype | genetic makeup |
| homozygous | organisms that have two identical alleles for a particular trait |
| heterozygous | organisms that have two different alleles for the same trait |
| test cross | the cross of an organism of unknown genotype and a homozygous recessive individual |
| diploid | a cell that contains both sets of hmologous chromosomes |
| haploid | cells that contain a single set of chromosomes |
| polar bodies | the other three cells produced in the female during meiosis |
| sex-linked | a gene located on one of the chromosomes |
| Y-chromosome | small and hook-shaped |
| codominance | a condition in which both alleles of a gene are expressed |
| incomplete dominance | the active allele does not compensate for the inactive allele, and the heterozygous phenotype is somewhere in between the hompzygous phenotypes |
