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Biology Savage
WCHS Savage Chapter 10
| Word | Definition |
|---|---|
| Gamete | male or female sex cells |
| Dominant | trait that shows up |
| Recessive | trait that is masked or hidden |
| Homozygous | alike alleles (TT or tt) |
| Filial | offspring |
| Genotype | genetic make up |
| Test Cross | mat the unknown genotype with homozygous recessive |
| Heterozygous | when there are two different alleles for a trait |
| Zygote | fertilized egg |
| P generation | original parents |
| Phenotype | outward appearance of an organism, regardless of its genes |
| Homologous | same traits arranged in same order |
| Mendel | is the Father of Genetics |
| Mendel's First Law | law of Segregation of Characteristics, if your eyes are blue, green or grey you have two alleles for blue eyes (bb), then your gametes must have a blue allele (b); if your eyes are brown you might have two brown allele (BB), then your gametes have (B) |
| Mendel's Second Law | is the law of "Independent Assortment". This says that for two characteristics the genes are inherited independently. If you had the genotype AaBb you would make four kinds of gametes: they would contain the combinations of either AB, Ab, aB or ab. |
| Mendel’s Third Law | the Law of Dominance states that the dominant allele, if present, will be expressed. |