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Genetics Vocab
Vocabulary terms for chapter 11
| Term | Definition |
|---|---|
| genetics | the study of how traits get passed done from generation to generation |
| trait | characteristics that can be passed down |
| hybrid | organisms with different traits combine and have offspring |
| segregation | the separation between the same groups of alleles |
| gamete | sex cells that only have half the amount of chromosomes as a normal cell |
| homozygous | organisms that have two of the same type of allele (TT)(tt) |
| heterozygous | organisms that have two different alleles for the same trait (Tt) |
| phenotype | physical characteristics of an organism |
| genotype | genetic make-up of an organism |
| independent assortment | when two different alleles segregate separately, the formation of random pairs |
| incomplete dominance | when one allele does not completely surpass the other |
| co-dominance | when both alleles correspond with each other to make a combined trait physical appearance |
| multiple alleles | when a gene has more than 2 alleles |
| polygenic traits | when traits are determined by the use of more than one gene |
| haploid | having one set of each chromosome |
| diploid | when the chromosomes are in pairs |
| meiosis | sexual reproduction 2n=n |
| tetrad | when homologous pairs attach with each other to exchange parts in meiosis |