SolutionProblemSetG

SolutionProblemSetG - BILD1 Halpain FA09 Problem Set G KEY...

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BILD1 Halpain FA09 Problem Set G KEY 1. Name Mendel's two laws of inheritance and describe the concept behind each. Law of segregation: When gametes are produced, copies of a gene are split between them; thus, each any one gamete only contains one allele of a specific gene. Law of independent assortment: Alleles of different genes sort into gametes independent of each other; that is, different traits are inherited independently. 2. Scientists cross a fly homozygous for red eyes with a fly homozygous for white eyes. All of the resultant offspring have red eyes. When two of the offspring are cross-bred with each other, three-fourths of the resulting generation have red eyes and one-fourth have white eyes. a) Which trait is dominant? Which trait is recessive? Red eyes are dominant, while white eyes are recessive. b) Draw a Punnett square for the first generation, F 1 . Make sure to create a key labeling what symbols you use correspond to which allele. R = red eyes; r = white eyes x R R r Rr Rr r Rr Rr c) Draw a Punnett square for the second generation, F 2 , using the same key from part b. x
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This note was uploaded on 12/17/2009 for the course BIOL 1 taught by Professor Patrick during the Fall '09 term at CSU Northridge.

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SolutionProblemSetG - BILD1 Halpain FA09 Problem Set G KEY...

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