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Chapter 14 & 15 - Coggle Diagram
Chapter 14 & 15
Mendel & the Gene Idea
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Law of segregation: anaphase 1 & 2, two alelles seperate during gamete formation & end up in different gametes
Law of independent assortment: metaphase 1, each pair of alleles segregates independent of any other pair
Crossing over: prophase 1, chromosomes touch and swap DNA, (recombint chromosomes)
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Chromosomal Inheritance
Sex determining region on the Y, SRY: in mammals, a gene on the Y chromosome is responsible for development of the testes in an embryo
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Genetic recombination: the production of offspring with combinations of traits differing from either parent
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Nondisjunction: pairs of homologous chromosomes don't seperate properly in meiosis ( consequences of law of segregation gone wrong)
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Polyploidy: a condition in which an organisms has more than 2 complete sets of chromosomes (humans are diploid), common in plants