ANTH 1001 Lecture : Anthro Notes 91012
Document Summary
Nondisjunctions the failure of chromosomes to separate during meiosis. Monosomy one less chromosome in a pair. Trisomies when one has an extra chromosome in a pair. Law of segregation traits are controlled by discreet units that occur in pairs. These pairs will separate during gamete formation, but reunite during fertilization. Gene- sequence of dna that codes for some reason. Dominant expressed in the presence of another, different allele. Recessive not expressed in the presence of another, different allele. Locus location of a gene on a chromosome. Homozygous 2 copies of the same allele. Law of independent assortment - genes that code for different traits sort independently of each other. Mendelian traits traits that are controlled by alleles at one locus. Blood type located at one locus on chromosome 9. Alleles a, b, and o code for antigens located on the surface of red blood cells.
