Cell Division Interphase: G1, S Phase, G2
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Questions and Answers

What happens during the S phase of interphase?

  • The cell doubles all organelles except genetic information
  • Spindle fibers connect to the paired chromosomes
  • The nuclear envelope disintegrates
  • The cell undergoes DNA and nucleus replication (correct)
  • What is the main focus of the M phase of the cell cycle?

  • Focused on deletion/repair of defective chromosome (correct)
  • Replication of DNA and nucleus
  • Doubling of all organelles except genetic information
  • Preparation for division by undergoing both cell growth and DNA replication
  • What occurs during synapsis in meiosis?

  • The nuclear envelope disintegrates
  • Each chromosome pairs and binds to its corresponding homologous chromosome (correct)
  • Spindle fibers connect to the paired chromosomes
  • DNA condenses into a chromosome
  • What is the difference between allele and gene?

    <p>Allele refers to variations of the same gene, while gene refers to a certain trait</p> Signup and view all the answers

    What happens at the end of prophase 1 in meiosis?

    <p>Each chromatid is a unique combination of the original homologous chromosome materials</p> Signup and view all the answers

    What is the purpose of crossing over in meiosis?

    <p>To exchange segments of alleles between chromatids from homologous chromosomes</p> Signup and view all the answers

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