Biology 3593B Study Guide - Quiz Guide: Meiosis, Zygote, Gamete
Document Summary
Early study of inheritance worked under the two assumptions that. Each parent contributes equally to the offspring, which was supported by reciprocal crossing. Hereditary determinants blend in the offspring and once they did they could never be separated (blending theory). Mendel, an austrian monk published a new theory of inheritance, which was mostly ignored as most biologist of the 1860s were not used to thinking in the mathematical terms he worked with. When meiosis was discovered in 1900 three plant geneticists realised that chromosomes and meiosis provided a physical explanation for mendel"s results. E: mendel controlled the pollination and fertilisation of garden peas, thus could be sure of the parents producing a certain offspring. The phenotype is the physical appearance of an organism, like spherical seeds. The genotype is the genetic makeup of an organism, like ss. A character is an observable physical feature, like the color of a flower.
