Ch 11 The Basic Principles of Heredity pg 3

Ch 11 The Basic Principles of Heredity pg 3 - some aspect...

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A. Inherited traits pass from parents to offspring as unmodified factors. B. Each individual has two sets of factors, one of each pair inherited from the mother and one from the father. C. The principle of segregation- parent passes one set of factors to each offspring during reproduction= Chromosomal basis of this is MEIOSIS but it was after Mendel’s time D. Factors may be expressed or hidden in a given generation, but they are never lost. E. Each factor is passed to the next generation independently from all other factors (the principle of independent assortment). I. Alleles occupy corresponding loci on homologous chromosomes A. Unduplicated chromosome- one linear DNA molecule; each gene is a segment of molecule B. Homologous chromosomes= similar in size, shape = have same genes but with different alleles C. Locus- refers to a segment of the DNA that has the information for controlling
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Unformatted text preview: some aspect of the structure/function of organism a. Seed color, seed shape, etc b. Existence= only if at least 2 allelic variants of that locus [yellow v. green peas] are available to study c. Not only position, but also a type of gene controlling character. ex. Y= yellow and y=green specific pair of alleles of a locus involved in determining seed color in peas D. Alleles- genes that govern variations of the same character [yellow v. green seed color] and occupy corresponding loci on homologous chromosomes II. A monohybrid cross involves individuals with different alleles of a given locus A. Monohybrid cross- the inheritance of two different alleles of the same locus a. Black female (BB) + brown male (bb)...
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This note was uploaded on 01/08/2010 for the course BIO 01-119-10 taught by Professor D'arville during the Fall '09 term at Rutgers.

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Ch 11 The Basic Principles of Heredity pg 3 - some aspect...

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