INTRODUCING GENETICS

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Genetics

noun, ( used with a singular verb)
1. Biology. the science of heredity, dealing with resemblances and differences of related organisms resulting from the interaction of their genes and the environment.
Dictionary.com Unabridged. Based on the Random House Dictionary, © Random House, Inc. 2016.

American Psychological Association (APA):  genetics. (n.d.). Dictionary.com Unabridged. Retrieved January 19, 2016 from Dictionary.com website http://dictionary.reference.com/browse/genetics

Strand 1: Life at Molecular, Cellular and Tissue Level

All living organisms are made of atoms which combine to form molecules. Of these, DNA (or Deoxyribonucleic Acid) carries the genetic code for cell specialization and cell functioning and DNA packages, as genes, determine what an organism will look like and how it will function. Plant and animal cells have a complex organisation which enables them to carry out the basic processes of life, i.e. movement, nutrition, respiration, excretion, growth, reproduction and responding to stimuli. Cells are specialized and form tissues which perform particular functions. Tissues are arranged into organs which are also specialized to carry out particular functions. In order to understand species, speciation, biodiversity and change, it is essential to understand how DNA and chromosomes enable continuity and change.

In class we discuss the basic structure and function of DNA and complete a summary page on it.  Then we build models of the DNA molecule using jelly-tots and toothpicks. Hereafter we extract DNA from wheat germ.

 

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