http nasteringbiology.co MasteringBiology: User Settings Consider a diploid cell

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http nasteringbiology.co MasteringBiology: User Settings Consider a diploid cell where MasteringBiology: Ch 13 HW × General Biology Fall 2015 Help | Close Ch 13 HWMeiosis (3 of 3) Determinants of Heredity and Genetic Variation (BioFlix tut. « previous 4 of 5 next » Part B Independent assortment and genetic variation Consider a diploid cell where 2n - 6. During metaphase I of meiosis, as the pairs of homologous chromosomes line up on the metaphase plate, each pair may orient with its maternal or paternal homolog closer to a given pole. There are four equally probable arrangements of the homologous pairs at metaphase l (Note that this problem assumes that no crossing over has occurred.) Arrangement 1 Arrangement 2 Arrangement 3 Arrangement 4 The cells below show the eight possible combinations of chromosomes that the daughter cells of meiosis Il can receive Sort each daughter cell into the appropriate bin depending on which arrangement at metaphase I would create it. 2 7 8 Arrangement 1 Arrangement 2 Arrangement 3 Arrangement 4 reset help Submit Hints My Answers Give Up Review Part Part C Crossing over and genetic variation Assume that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur normally. Consider how the absence of crossing over would affect the outcome of meiosis 2:40 PM 11/6/2015

Explanation / Answer

Arrangement 1: Daughter cells 3 and 8 form an appropriate combination

Arrangement 2: Daughter cells 5 and 1 form an appropriate combination

Arrangement 3: Daughter cells 6 and 2 form an appropriate combination

Arrangement 4: Daughter cells 4 and 7 form an appropriate combination

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