Mendel and His Peas
Kuvakäsikirjoitus Teksti
- Gregor mendel grew up on a farm in austria, during the 1800's.
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- At 21 Mendel joined a monastery that sparked his interest in science.
- Mendel discovered that pea plants can self-pollinate
- In self-pollination, sperm from one plant fertilizes the the eggs of the same plant. A true-breeding plant's offspring will have the same traits as the parent.
- They canCross-Pollinate
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- When Mendel crossed a purple plant and a white plant, he observed that the offspring always had purple flowers
- First Generation Plants
- Mendel choose to call the trait that appeared the dominant trait, and the trait that disappeared the recessive trait
- Gregor Mendel then allowed the first-generation plants to self-pollinate
- Second Generation plants!
- Mendel observed that for every 3 plants with dominant traits there was 1 plant with the recessive trait
- characteristic
- plant height
- flower position
- pod shape
- pod color
- seed shape
- flower color
- seed color
- Mendel's Results
- 651 along stem
- Dominant traits
- 882 smooth
- 428 green
- 787 tall
- 705 purple
- 5,474 round
- 6,002 yellow
- 207 at tip
- recessive traits
- 152 yellow
- 299 bumby
- 277 short
- 1,850 wrinkled
- 2,001 green
- 224 white
- dominant traits
- 2.81:1
- 2.94:1
- 3.14:1
- 2.99:1
- 2.95:1
- 2.84:1
- 3.14:1
- ratio
- Mendel concluded that each parent gives one set of instruction, the offspring's traits are determined by the dominant set of instructions
- Gregor Mendel was a GENIUS
- Unfortunately scientists did not recognize Mendel's work until 30 years after his death.
Yli 30 miljoonaa kuvakäsikirjoitusta luotu