BIO152H5 Lecture Notes - Lecture 8: Wrinkle, Phenotype, Allele
Document Summary
@ the time most people believed that traits were passed on through blending. When something is blended you can"t take it apart, if you bread large and small=medium, can"t find genetic component for small or medium. Hypothesis: particulate way of inheriting, particular units in the parents, stayed as particular units, blending of characteristics. Self-pollination: pollen from stamen fertilizes egg in carpet of same flower. Cross-pollination fertilization of one plant by pollen from another plant. Character: heritable features that vary among individuals. Genes: discrete units, hereditary determinants for a trait. Phenotype: physical appearance that expresses the genotype. Homozygous: an organism with a pair of identical alleles for a character. Heterozygous: an organisms with differenet alleles for a character. True breeding: individuals that produce offspring like themselves over many. Hybridization: created by mating two true breeding varieties. Female organs receiving pollen, male organs produce, remove male organs from one individual, collect pollen from a different one then, transfer female organs.
