Scene 1 (0s)
Types of mutation. Mariam abotaleb.
Scene 2 (6s)
What types of mutation are there?. There are lots of different mutations that can occur in our DNA. Small-scale mutations: Point mutation – a change in one base in the DNA sequence..
Scene 3 (19s)
Substitution – when one or more bases in the sequence is replaced by the same number of bases (for example, a cytosine substituted for an adenine)..
Scene 4 (30s)
Inversion – when a segment of a chromosome is reversed end to end.
Scene 5 (40s)
Deletion – when a base is deleted from the sequence..
Scene 6 (47s)
What are common genetic disorder ?.
Scene 7 (54s)
There are many types. They include: Chromosomal disorders Down syndrome (Trisomy 21). FragileX syndrome. Klinefelter syndrome. Triple-X syndrome. Turner syndrome. Trisomy 18. Trisomy 13..
Scene 8 (1m 6s)
Now we will talk about down syndrome Down syndrome, the most common chromosome-related genetic condition in the U.S., affects development of the brain and body. People with Down syndrome face physical and mental challenges, but can lead full and happy lives..