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Ch 11 Vocab Genetics
| Question | Answer |
|---|---|
| Heredity | The passing of traits from parents to offspring. Example: Tall parents have tall children |
| Genetics | The study of how traits are passed from parents to offspring |
| Dominant | One genetic factor that blocks another genetic factor |
| Recessive | A genetic factor that is blocked by the dominant factor |
| Gene | A section of DNA chromosome that has the genetic information for one trait Example: Dimples |
| Allele | A different form of a gene. |
| Phenotype | How a trait appears or is expressed |
| Genotype | The alleles of all the genes on an organism's chromosome that controls the organisms phenotype Example: Hh hh HH |
| Homozygous | a genotype in which the the two alleles of a gene are the SAME HH dominant hh recessive |
| Heterozygous | A genotype in which the two alleles of a gene are DIFFERENT Hh Hybrid |
| Punnett Square | A model that is used to show the probability of all possible genotypes and phenotypes of offspring |
| Incomplete Dominance | An inheritance pattern where an offspring's phenotype is a combination of the parents phenotype |
| Codominance | In inheritance pattern where both alleles can be observed in a phenotype |
| Polygenic inheritance | an inheritance pattern in which multiple genes determine the phenotype of a trait Example: Hair color, eye color skin color |
| DNA | Abbreviation for deoxyribonucleic acid, it is an organism's genetic material Double helix |
| Nucleotide | A molecule made of a nitrogen base, of sugar and a phosphate group |
| Replication | The process of copying a DNA molecule to make another DNA molecule ATAGCA GTATCGT |
| RNA | Ribonucleic acid, a nucleic acid that carried the code for making proteins from the nucleus to the cytoplasm |
| Translation | The process of making proteins from RNA RNA->Protein |
| Transcription | The process of making MRNA from DNA |
| Mutation | A permanent change in the sequence of DNA or a chromosome |