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HEREDITY
Concept 1 Vocabulary
| Question | Answer |
|---|---|
| Genes | Section of DNA that provides the instructions for making a protein |
| Alleles | Different versions of the same gene. Each individual have 2 alleles (1 from each parent) for every gene. |
| Homologous Chromosomes | the matching chromosomes from our mom and dad |
| Homozygous | 2 of the same alleles (AA) |
| Heterozygous | 2 different alleles (Aa) |
| Dominant | If present, the allele will always have that trait expressed (seen). |
| Recessive | The allele will only have that trait expressed (seen) when the dominant allele is NOT present. |
| Genotype | The actual alleles inherited. |
| Phenotype | the physical traits/characteristics seen in an organism. |
| Punnett Square | A diagram that shows the probability of inheriting traits from parents with certain genes. |
| Monohybrid Cross | a cross between two organisms looking at one trait |
| Dihybrid cross | Used when finding the possible genotypes for offspring when considering two traits at the same time. |