Biochemistry & Biology Practice Questions I with Answers

 

  1. Cell contents grow and duplicate in which phase of the cell cycle?
  • Metaphase
  • Telophase
  • Prophase
  • Interphase
  1. What phase of cell division results in separate sister chromatids?
  • Prophase
  • Metaphase
  • Anaphase
  • Interphase
  1. You have a cell with 36 chromosomes in 18 homologous pairs. At the end of mitosis you have
  • 2 cells with 36 chromosomes and 0 homologous pairs
  • 2 cells with 36 chromosomes in 18 homologous pairs
  • 2 cells with 18 chromosomes in 0 homologous pairs
  • 4 cells with 18 chromosomes in 0 homologous pairs
  1. You have a cell with 36 chromosomes in 18 homologous pairs. After meiosis you have
  • 2 cells with 36 chromosomes in 0 homologous pairs
  • 2 cells with 36 chromosomes in 18 homologous pairs
  • 4 cells with 18 chromosomes in 0 homologous pairs
  • 4 cells with 36 chromosomes in 0 homologous pairs
  1. At the end of meiosis 1, the cells are haploid
  • True
  • False
  1. Suppose a person developed a mutation in a somatic cell which diminishes the performance of the body’s natural cell cycle control proteins. This mutation resulted in cancer, but was effectively treated with a cocktail of cancer-fighting techniques. Is it possible for this person’s future children to inherit the cancer causing mutation?
  • Yes
  • No
  1. You are looking at a karyotype and see the Philadelphia chromosome. What does this mean?
  • You are looking at HeLa cells
  • p53 regulation not well controlled in this individual
  • this individual experienced translocation resulting in sarcoma
  • this individual experienced translocation resulting in chronic myelogenous leukemia
  1. The sequence of DNA on homologous chromosomes is exactly the same.
  • True
  • False

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