Biology 1001A Lecture Notes - Lecture 10: Reciprocal Cross, Sex Linkage, Y Chromosome
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20 Jan 2020
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Alleles are just different versions of the same genes the differences may have arisen from. Complex traits controlled by many genes polygenic traits show a continuous distribution. Mendel focused on simple traits with discrete phenotypes (not polygenic) He counted and categorized all of the offspring quantitative analysis. Sex determination gene lies on the y chromosome sry. There are also non sex related genes on the x chromosomes ex dna pol. Sex chromosomes are inherited differently that autosomes. Name of the gene is derived from the mutant phenotype: ex: white eyes" is the mutant the gene would be called white w, normal would be non-white, and would be w+ (red eyes)