Which Aspect(s)of Chromosome Behavior Is/are Primarily Responsible for the Tremendous

question 24

Multiple Choice

Which aspect(s) of chromosome behavior is/are primarily responsible for the tremendous amount of genetic variability associated with sexual reproduction?

• A)segregation of sister chromatids at anaphase II of meiosis
• B)segregation of homologous chromosomes at anaphase I of meiosis
• C)crossing-over between homologous chromosomes during prophase I of meiosis
• D)independent alignment of different homologous pairs on the metaphase I spindle
• E)both crossing-over between homologous chromosomes during prophase I of meiosis and independent alignment of different homologous pairs on the metaphase I spindle

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