bio2ch10 - Chapter 10 Genetics 1) Foundations of genetics...

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Chapter 10 Genetics 1) Foundations of genetics i) Started out by looking at and breeding different types of plants ii) By doing this, it was discovered that both parents contribute information to the offspring equally 2) Reciprocal cross a) Between purple plant and white plant b) The second time they reversed the experiment and received the same results => equal sharing 3) Blending a) Red flowers x white flowers => pink flowers 4) Gregor Mendel a) Austrian monk that was not officially trained as a scientist b) Applied the principles of mathematics to the problem, which no one else had ever done before i) This allowed Mendel to get a different perspective (outside the box) 5) Key terms a) Gene - genetic code that gives rise to a characteristic b) Phenotype – physical appearance of that particular characteristic c) Genotype – the genetic makeup of an organism d) Allele – different forms of a gene (2 different flower colors, different heights, different seed sizes, etc.) e) Homozygous – two copies of the same allele (SS or ss) f) Heterozygous – one copy of each allele (Ss) 6) Pea plants a) Mendel decided to use pea plants for his experiment because they were easy to observe and he had enough room for them b) True-breeding plants i) Plants that always give rise to plants of the same characteristic c) Mendel concentrated on seven different characteristics:
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This note was uploaded on 04/07/2008 for the course BIOL 2180 taught by Professor Harmich during the Spring '08 term at Toledo.

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bio2ch10 - Chapter 10 Genetics 1) Foundations of genetics...

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