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Genetics and Gregor Mendel - Coggle Diagram
Genetics and Gregor Mendel
Who was Mendel?
A monk who loved gardening
Lived in the era of "blending inheritance"
Discovered: traits are passed directly (dominant/recessive); Signs are transmitted discretely, not mixed
Surprisingly: worked without a microscope and by counting thousands of plants
Mendel's laws that didn't hold up
Reason 1: independent assortment → not always true (genes can be linked → genetic linkage)
Reason 2: only the nucleus matters → no (there are genes in mitochondria and plastids)
Positive genetic modifications (examples)
Soybeans
· No toxic chemicals
· Harmful to pests, safe for humans
· Farmers use fewer chemicals
Apples
· Don't brown (browning gene turned off)
· Otherwise the same apples
Conclusion
Mendel — the founder of genetics
Genetics → safer, healthier and more environmentally friendly products
Genetics is more complicated than Mendel's model, but the base is correct
His laws are the starting point, even with clarifications