NS 1300 Emergence of Modern Science Patterns of Inheritance.

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Presentation transcript:

NS 1300 Emergence of Modern Science Patterns of Inheritance

How will the results of Human Genome Project change our lives forever?

Chromosomes

Mendel’s Laws Law of Segregation - homologous - chromosomes - gene pairs - alleles - homozygous - heterozygous - gene loci - gene frequency

Inheritance of a Single Trait Genotype Phenotype Gamete Formation (meiosis)

Monohybrid Crosses

Dihybrid Crosses

Incomplete Dominance

Polygenic Inheritance

Multiple Alleles

Sex-Linked Inheritance

Chromosomal Mutations

Nondisjunction

Viruses DNA Viruses RNA Viruses Retroviruses Adenoviruses

Quiz 1. T or F, genes are found on chromosomes. 2. T or F, homologous chromosomes are segregated independently during meisosis. 3. T or F, sex-linked traits are determined by genes on the Y chromosome. 4. T or F, non-disjunction can produce birth defects. 5. Use this monohybrid cross to answer the following question: Where A represents aggression and a a lack of aggression. If A is completely dominant over a, what are the odds of having aggressive offspring from this cross? A a X Aa