Lesson 9 : Heredity and Evolution
9. Heredity and Evolution Traits Types of Traits Phenotype, Genotype and Allele Laws of Inheritance Rule for Inheritance Sex Determination Speciation and Geographic Isolation Types of Speciation Theory of Natural Selection Homologous and Analogous Characteristics Evolution by Stages Lesson: Heredity and Evolution Question: 1 A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as: (a) TTWW (b) TTww (c) TtWW (d) TtWw Solution: (c) Question: 2 An example of homologous organs is: (a) Our arm and a dog’s fore-leg (b) Our teeth and an elephant’s tusks (c) Potato and runners of grass (d) All of the above Solution: (b) Question: 3 ...