What we have Why we do Introduction Why us?. OOH Advertisement.
Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?
-
date post
15-Jan-2016 -
Category
Documents
-
view
230 -
download
0
Transcript of Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?
![Page 1: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/1.jpg)
Genetics
Why do I have blue eyes?
Why do I have type A blood?
Why do I have brown hair?
![Page 2: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/2.jpg)
Genetics
• The scientific study of heredity is called genetics.
• The passing of traits from parents to offspring is called heredity.
• A trait is a specific characteristic that varies from one individual to another.
![Page 3: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/3.jpg)
The Father of Genetics
• Gregor Mendel was an Austrian Monk who lived during the mid 19TH Century.
• He studied the genetics of pea plants.
![Page 4: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/4.jpg)
Gregor Mendel’s Peas
Mendel knew that – the male part of
each flower produces pollen, (containing sperm).
– the female part of the flower produces egg cells.
![Page 5: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/5.jpg)
Pea Sex
• During sexual reproduction the sperm cell inside the pollen comes in contact with the egg cell through the process of Fertilization.
• The fertilized egg cell is now called a zygote which will continue to under go cell division and specialization to produce a new plant.
![Page 6: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/6.jpg)
• Pea flowers are self-pollinating.
• Sperm cells in pollen fertilize the egg cells in the same flower.
• The seeds that are produced by self-pollination inherit all of their characteristics from the single plant that bore them.
![Page 7: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/7.jpg)
• Mendel had true-breeding pea plants that, if allowed to self-pollinate, would produce offspring identical to themselves.
• Mendel wanted to produce seeds by joining male and female reproductive cells from two different plants.
• He cut away the pollen-bearing male parts of the plant and dusted the plant’s flower with pollen from another plant.
![Page 8: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/8.jpg)
• This process is called cross-pollination.
• Mendel was able to produce seeds that had two different parents.
![Page 9: Genetics Why do I have blue eyes? Why do I have type A blood? Why do I have brown hair?](https://reader035.fdocuments.net/reader035/viewer/2022062423/56649d565503460f94a34c8e/html5/thumbnails/9.jpg)