Inheritance
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Gregor Mendel is known as the "Father of Genetics" as he discovered the principles of heredity by breeding and observing pea plants. Through his experiments, he determined that traits are passed from parents to offspring and are controlled by discrete units called genes. Mendel discovered that genes exist in pairs and that some traits are dominant over others through his study of true-breeding pea plants and their hybrid offspring.
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- 2. He was known as Father of Genetics He discovered how traits were inherited Genetics: it is the study of heredity Heredity: the passing over traits from parent to offspring
- 3. M艶稼糸艶鉛 did his study on pea plants Pea plants have many traits(tall/short, purple flowers/ white flowers) Pea plants can be self- fertilised or cross fertilised
- 4. 1. True-breeding: These plants always create plants that look like themselves 2. Hybrid: Offspring of true- breeding plants Tall x short= Hybrid
- 5. S看馨艶 traits are dominant over others Tall x Short= all tall offspring(hybrid) Tall is the dominant trait Short is recessive
- 6. M艶稼糸艶鉛 discovered that each trait is controlled by two factors (alleles) Genotype: what genes, letters, the organism has(TT, Tt,tt) Phenotype: what it looks like (tall or short) Genes: factors that determine your trait
- 7. 青恰沿鉛温庄稼庄稼乙 the cross When a parent makes sperm or egg, their genes separate (principle of segregation) The gametes (egg or sperm) contain either a T allele (tall) or t allele.
- 10. 1. A one eyed purple people eater is crossed with a two eyes. Which one is dominant? 2. If you use the letter E for this gene. What is the offspring?
- 11. 3. Are these offspring the f1 or f2 generation? 4. If you crossed the offspring with each other, how many of the new offspring would you expect to have two eyes?