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Gregory MENDEL WHO? Father of Genetics = Pea Plants
Independent Assortment Genes that segregate independently, do NOT influence each other’s inheritance. Separate genes for separate traits are passed independently of one another from parents to offspring
Dominant vs. Recessive Traits
Some alleles are neither dominant nor recessive, and many traits are controlled by multiple alleles or multiples genes.
Incomplete Dominance Where one allele is not completely dominant over another. Heterozygous phenotype is somewhere in between the two homozygous phenotypes.
Codominance Both alleles contribute to the phenotype (physical characteristics). Both alleles are FULLY EXPRESSED.
Multiple Alleles Genes that have more than 2 alleles. More than 2 possible alleles exist in the population.
Polygenic Traits Traits controlled by two or more genes. Traits that are produced by the interaction of several genes.
The FOIL method is ONLY used when finding the gametes from parents with two traits. Use the FOIL method to find the gametes: (RrYy)
(R + r)(Y + y). F tells you to put the FIRST of the two traits’ alleles together. RY
(R + r)(Y + y). O tells you to put the OUTER alleles together. Ry
(R + r)(Y + y). I tells you to put the INNER alleles together. rY
(R + r)(Y + y). L tells you to put the LAST alleles together. ry
Remember, FOIL reminds you to match up the: F irst alleles O uter alleles I nner alleles L ast alleles
Mendel’s Laws of Heredity
Genetics. Cells-Nucleus-Chromosomes- DNA- Genes They are all found in a cell. They are all located in the body.
Jeopardy Gregor Mendel Alleles & Genes Mendel’s Principles Patterns of Inheritance Independent Assortment Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q.
Bell Ringer: (5 min.).
Exploring Mendelian Genetics
GENETICS. Mendel and the Gene Idea Genetics The study of heredity. The study of heredity. Gregor Mendel (1860’s) discovered the fundamental principles.
Gregor Mendel Father of Modern Genetics. Gregor Mendel Father of modern Genetics.
1. What is genetics The study of heredity 2. Gregor Mendel used pea plants to study what? inheritance.
Heredity and Mendel. Heredity The passing of parents characteristics onto the offspring Genetics is the branch of biology that studies heredity.
Genetics: Basic Inheritance Ch & 2. Genetics Genetics is the study of heredity. Genetics is the study of heredity. Traits are controlled through.
Mendel wondered if genes that determine different traits affect one another. He did an experiment to find out. Mendel found that the gene for seed shape.
Genetics College Biology. Gregor Mendel Mid 1800’s, Austrian monk. Introduced probability to genetics Mated pea plants.
Height in Humans Height in pea plants is controlled by one of two alleles; the allele for a tall plant is the dominant allele, while the allele for a short.
Mendelian Genetics Part II. Dihybrid Crosses A cross involving 2 traits. Law of Independent Assortment: Genes for different traits can segregate independently.
Chapter 11-3: Exploring Mendelian Genetics. To determine if the segregation of one pair of alleles affects the segregation of another pair of alleles,
Notes # 8: Chapter 14 Mendel and the Gene Idea I. General Genetics Terms A) Trait: characteristic that can be inherited B) Allele: Alternate forms of.
11-3 Exploring Mendelian Genetics
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