What is a gene?
A gene is the set of information that controls a trait.
Cronkite, Donald. Cells and Heredity. Boston: Pearson Education, Inc., 2005. [Pgs. 117-121]
Photo Credit: http://payingattentiontothesky.files.wordpress.com/2012/04/genes1.jpg
Cronkite, Donald. Cells and Heredity. Boston: Pearson Education, Inc., 2005. [Pgs. 117-121]
Photo Credit: http://payingattentiontothesky.files.wordpress.com/2012/04/genes1.jpg
How do genes work?
Genes hold the instructions for making protein products.
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Photo Credit: http://specialedpost.com/wp-content/uploads/2012/10/Autism-genetics.jpg
What is a genetic disorder?
Cells can sometimes contain changes or variants in the information in their genes. This is called gene mutation, and it often occurs when cells are aging or have been exposed to certain chemicals or radiation. Other times, however, they can cause illnesses, such as some types of cancer. And if the gene mutation exists in egg or sperm cells, children can inherit the mutated gene from their parents.
Credit: http://kidshealth.org/teen/your_body/health_basics/genes_genetic_disorders.html#
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Credit: http://kidshealth.org/teen/your_body/health_basics/genes_genetic_disorders.html#
Photo Credit: http://runkle-science.wikispaces.com/file/view/autosomal_dominant.jpg/30631549/autosomal_dominant.jpg
What are [2] major causes of genetic disorders?
Some genetic disorders are caused by mutations in the DNA genes. Other disorders are caused by changes in the overrall structure or number of chromosomes.
Cronkite, Donald. Cells and Heredity. Boston: Pearson Education, Inc., 2005. [Pgs. 117-121]
Picture Credit: http://www.beltina.org/pics/genetic_carrier.gif
Cronkite, Donald. Cells and Heredity. Boston: Pearson Education, Inc., 2005. [Pgs. 117-121]
Picture Credit: http://www.beltina.org/pics/genetic_carrier.gif
What is a pedigree, and how do scientists use it?
A pedigree is a chart or "Family Tree" that tracks which members of a family have a particular trait.
Scientists use it to trace the inheritance of traits in humans.
Credit: Cronkite, Donald. Cells and Heredity. Boston: Pearson Education, Inc., 2005. [Pgs. 117-121]
Photo credit: http://www.uic.edu/classes/bms/bms655/gfx/pedigree7.gif
Scientists use it to trace the inheritance of traits in humans.
Credit: Cronkite, Donald. Cells and Heredity. Boston: Pearson Education, Inc., 2005. [Pgs. 117-121]
Photo credit: http://www.uic.edu/classes/bms/bms655/gfx/pedigree7.gif
How are Genetic disorders diagnosed?
Cells can sometimes contain changes or variants in the information in their genes. This is called gene mutation, and it often occurs when cells are aging or have been exposed to certain chemicals or radiation. Fortunately, cells usually recognize these mutations and repair them by themselves. Other times, however, they can cause illnesses, such as some types of cancer. And if the gene mutation exists in egg or sperm cells, children can inherit the mutated gene from their parents.
Credit: http://kidshealth.org/teen/your_body/health_basics/genes_genetic_disorders.html#
Picture Credit: http://cdn.medgadget.com/img/654324sirna.jpg
Credit: http://kidshealth.org/teen/your_body/health_basics/genes_genetic_disorders.html#
Picture Credit: http://cdn.medgadget.com/img/654324sirna.jpg
