Biology - Inheritance, chromosomes, DNA and genes - Complete Science Key Stage 3 Unit

This pdf covers

• heredity as the process by which genetic information is transmitted from one generation to the next
• a simple model of chromosomes, genes and DNA in heredity, including the part played by Watson, Crick, Wilkins and Franklin in the development of the DNA model
• differences between species
• the variation between individuals within a species being continuous or discontinuous, to include measurement and graphical representation of variation
• the variation between species and between individuals of the same species meaning some organisms compete more successfully, which can drive natural selection
• changes in the environment which may leave individuals within a species, and some entire species, less well adapted to compete successfully and reproduce, which in turn may lead to extinction
• the importance of maintaining biodiversity and the use of gene banks to preserve hereditary material

This booklet is designed to be printed off and given to students to work through - included is a second teacher copy with all the activities completed. By the end of the unit student will have a complete set of notes for the topic.