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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 |