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

question 59

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 contribute to genetic variability

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