Genetics and Evolution II

Frage	Antworten
What is the chromosome theory of inheritance?	Chromosome behaviour in mitosis/meiosis correlates with gene behaviour Chromosomes carry many gene-linkages
Draw Drosophila melanogaster chromosomes in mitosis	Female/Male
Who did groundbreaking work on white eyed flies and what did he discover?	Thomas Hunt Morgan Discovered sex linkages and confirmed the chromosome theory of inheritance
Outline his cross-breeding work	Whole shit load of back crossing and crosses here
What was his final proof? (3)	Examined flies that had extra Y chromosomes XXY females are fertile and can transmit a y chromosome to their offspring w1/Y males crossed to XXY females can generate w1/Y males
What is recombination?	Exchange of genetic information between homologous chromosomes or sister chromatids, resulting in the formation of a hybrid chromosome

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