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  • Question
  • Which helps prevent errors in DNA replication?


  • Options
  • A. Complementary base pairing reduce errors
  • B. DNA ligase checks the DNA for errors
  • C. DNA is located in the ribosomes
  • D. Any base can pair with any other base

  • Correct Answer
  • Complementary base pairing reduce errors 

    Explanation

    DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the basis for biological inheritance. Complementary base pairing helps prevent errors in DNA replication.

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    Biology problems


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    • 1. What color tubes are used for which tests in phlebotomy?
    • Discuss
    • 2. Body cells that respond to insulin include

    • Options
    • A. Liver cells
    • B. Endothelial cells
    • C. Skin cells
    • D. Bone cells
    • Discuss
    • 3. Menstruation is triggered by a drop in the levels of

    • Options
    • A. progesterone
    • B. relaxin
    • C. FSH
    • D. LH
    • Discuss
    • 4. Blood flow to a tissue will increase if the

    • Options
    • A. pH rises
    • B. Level of carbon dioxide at the tissue increases
    • C. Vessels constrict
    • D. Level of oxygen at the tissue increases
    • Discuss
    • 5. In what chief capacity does vitamin k function?

    • Options
    • A. raise plasma calcium
    • B. blood clot
    • C. produce rhodopsin
    • D. bone density
    • Discuss
    • 6. When insulin is released, it causes

    • Options
    • A. Amount of glucose in blood decreases
    • B. Amount of glucose in blood increases
    • C. Amount of bile juice increases
    • D. Amount of bile juice decreases
    • Discuss
    • 7. According to Erikson, the goal of adolescence is to

    • Options
    • A. independent identity
    • B. explore who they are
    • C. both a & b
    • D. None of the above
    • Discuss
    • 8. Appetite is triggered by

    • Options
    • A. stomach enzymes
    • B. pancreatic enzymes
    • C. physiological drive
    • D. environmental cues such as the smell or taste of food
    • Discuss
    • 9. Haemophilia is a hereditary disease carried by

    • Options
    • A. females and expressed by males
    • B. males and expressed by males
    • C. females and expressed by females
    • D. males and expressed by females
    • Discuss
    • 10. Which best describes a tetrad?

    • Options
    • A. A diploid cell
    • B. Two gametes
    • C. Four chromatids
    • D. A haploid cell
    • Discuss


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