Genetics: The Scientific Study of Heredity.
Traits
Heredity
Gregor Mendel
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Gregor Mendel’s Methods
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Experiments of Mendel
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Mendel’s Crosses
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Mendel’s Seven Traits
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Principle of Dominance
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Segregation
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Gamete Formation
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More Key Words
• Phenotype:
• Genotype:
• Homozygous:
• Heterozygous:
Mendel’s Principles
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Ratio Results
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Probability, Ratios and Punnett Squares
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Punnett Square Practice
To determine the phenotype of an offspring you must first recognize its genotype.
Practice Problems
1. Heterozygous dominant x
Homozygous recessive
Hh x hh ( H = white, h = green )
2. homozygous recessive x
homozygous recessive
bb x bb ( B = Black, b = brown)
3. Heterozygous dominant x
homozygous dominant
Tt x TT ( T = tall, t = short )
Probability and Predicted Averages
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Independent Assortment
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Two Factor Hybrid Cross
Beyond Dominant and Recessive Alleles
Incomplete Dominance
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Codominance
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Multiple Alleles
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REVIEW
1. The name of the scientist responsible for forming the foundations of genetics
Is ___________________
__________________.
2. Why did this scientist choose garden peas to perform his experiments?
3. Heredity can be defined as?
4. Genetics can be defined as?
5. What is difference between dominant and recessive traits?
6. Explain the difference between the P, F1 and F2 generations. What type of
genetic characteristics can be observed in each one?
7. The difference between a gene and an allele is?
8. Homozygous is?
9. What is codominance?
10. What is incomplete dominance?