2. What is Genetics When organisms reproduce the offspring tend to resemble their parents. They are not, however, identical to either parent, and they are not simply a mixture of the two parents. For instance, in humans one parent is male and the other female, and their children are either male or female, not a mixture of the two traits. On the other hand a child might have her father’s eye colour, and her mother’s hair colour. Genetics is concerned with explaining the behaviour of such inherited characteristics, in terms of the underlying genetic machinery which turns a single cell (the fertilised egg) into a worm, a carrot, or a human. So genetics explains how life begins. It also explains how, over longer time scales, living things change, or evolve, to produce the dazzling diversity of life.

3. Cystic Fibrosis And its symptoms.

4. Introduction Cystic Fibrosis is a hereditary disease in which the lungs, liver and pancreas secrete large amounts of thick mucus. A cystic fibroses patient has difficulty breathing because mucus clogs his lungs. He/she cannot digest food completely because plugs of mucus prevent the liver and the pancreas from secreting their digestive enzymes. The blockage by mucus also damages tissues in the organs involved. Many victims die of lung infections. Cystic fibrosis, also called mucoviscidosis, cannot be cured

5. CF is often accompanied by the following signs and symptoms. Thick, viscous mucus secretions in the lungs Changes in color and amount of sputum (material coughed up from the lungs) Chronic cough, possibly with blood streaking Wheezing Bronchitis Chronic sinusitis Asthma Nasal polyps (fleshy growths inside the nose) Weight loss, failure to thrive in infants, abdominal swelling Excessive salt in sweat, dehydration Failure of newborn to pass stool Abdominal pain, flatulence Fatigue Symptoms Of CF

6. How It Affects Us. Cystic Fibrosis (CF) is the most common repeated genetic disease. CF affects approximately 30,000 children and young adults. It occurs in approximately one of every 3,300 live births. The most common symptoms of CF are salty-tasting skin; persistent coughing, wheezing and an excessive appetite but poor weight gain. CF causes the body to produce an unusual thick, sticky mucus. This abnormal mucus clogs the lungs and leads to lung infections. The thick CF mucus also interferes with the pancreas and stops enzymes from reaching the intestines and digesting food.

7. CREDITS Produced By: Oliver Sechi Cheyney Ranger Lucus kulaitis Shayan Asharizade We hope you enjoyed our presentation.