| A | B |
|---|
| Allele | Any of the alternative forms of a gene that occurs at a specific place on a chromosome. |
| Dominant trait | It is always expressed. |
| Recessive trait | Is expressed only when recessive alleles are present |
| Genetics | Study of heredity which is the passing of traits from parent to offspring. |
| Meiosis | A process of nuclear division where the chromosome number is halved in order to form gametes (sex cells). |
| Gametes | Egg and Sperm sex cells |
| Zygote | An egg and sperm have united to become a fertilized cell |
| Trait | Inherited characteristics (like eye color, hair color) |
| Phenotype | Physical appearance that you actually can see |
| Genotype | Allele combination (letter combination) |
| Homozygous | Two of the same alleles (BB or bb) |
| Heterozygous | Two different alleles (Bb) |
| Nucleotide | Monomer that forms DNA and has a phosphate group, a sugar, and a nitrogen containing base |
| Transcription | Process of copying a nucleotide sequence of DNA to form a complementary strand of mRNA (messenger RNA) |
| Translation | Process by which mRNA is decoded and a protein is produced |
