Producers: Alberta Advanced Education

Looks at exceptions to segregation and independent assortment during gamete formation. Examines the effect of gene linkage on phenotypic and genotypic ratios. Uses cross-over values in Sordaria to determine the distance of a gene from the centromere.

Examines the findings of Thomas Morgan regarding sex-linked inheritance. Investigates the probabilities of males and females inheriting sex-linked traits such as colour blindness and hemophilia. Uses graphics to analyse sex-linked traits.

Describes the events that occur once fertilization of the ovum has taken place. Explains the various stages of embryonic development and differentiation using slides and models. Presents theories on various mechanisms that trigger cell differentiation.

Outlines development during each trimester of pregnancy and the hormones involved in regulating fetal development, birth and lactation. Illustrates the mechanism for exchanging nutrients and wastes between mother and fetus.

Illustrates the phases of meiosis and explores its importance in maintaining the proper number of chromosomes during gamete formation. Explains how crossing over and nondisjunction increase diversity in the species.

Compares the processes of mitosis and meiosis, focusing on the tissues in which these processes occur, the behaviour and number of chromosomes involved and the types of cells produced. Shows actual cells undergoing mitosis and meiosis.

Uses the analogy of soccer to explore diversity in plant and animal reproductive strategies. Compares sexual and asexual reproduction, looking at chromosomal activity, genetic variation and consequences of budding, binary fission and spore production.

Outlines the principles which form the basis of classical genetics. Demonstrates the experiments that Gregor Mendel conducted on pea plants and reveals the laws of inheritance. Probability and Punnett squares predict the results of monohybrid crosses.

Uses the analogy of square dancing to introduce dihybrid crosses. Illustrates how the laws of inheritance for monohybrid crosses also apply to dihybrid crosses. Demonstrates how probability and the product rule determine the outcome of trait crosses.