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  • Question
  • Nucleotides are attached by bonds between the


  • Options
  • A. phosphates and sugars
  • B. nitrates and sugars
  • C. nitrates and phosphates
  • D. sugars and hydrates

  • Correct Answer
  • phosphates and sugars 

    Explanation

    In DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5' phosphate group of one nucleotide and the 3'-OH group of another.

     

    Hence, in this manner, each strand of DNA has a "backbone" of phosphate-sugar-phosphate-sugar-phosphate.

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    Biology problems


    Search Results


    • 1. Where does glycolysis take place in Eukaryotic cells?

    • Options
    • A. Mitochondrial Outer membrane
    • B. Cytoplasm
    • C. Mitochondrial inner membrane
    • D. None of the above
    • Discuss
    • 2. Which would provide the body with the most energy?

    • Options
    • A. Breaking a single carbon bond
    • B. Forming bonds between two amino acids
    • C. Creating bonds to form a carbohydrate
    • D. Breaking the bonds in a monosaccharide
    • Discuss
    • 3. Most absorption of nutrients occurs in the

    • Options
    • A. Stomach
    • B. Liver
    • C. Large intestine
    • D. Small intestine
    • Discuss
    • 4. What are the rungs of the DNA ladder made of?

    • Options
    • A. phosphates and sugars
    • B. nitrates and sugars
    • C. nitrates and phosphates
    • D. sugars and hydrates
    • Discuss
    • 5. Which of the following can be a symptom of AIDS?

    • Options
    • A. Hair loss
    • B. Severe weight gain
    • C. Tiredness
    • D. All the above
    • Discuss
    • 6. The correct order of events during meiosis is

    • Options
    • A. prophase I, metaphase I, anaphase I, telophase I, cytokinesis, meiosis II.
    • B. anaphase I, telophase I, prophase I, cytokinesis, meiosis II.
    • C. cytokinesis, metaphase I, anaphase I, telophase I,
    • D. telophase I, prophase I, cytokinesis, meiosis II, anaphase
    • Discuss
    • 7. Gluconeogenesis is a term that describes the synthesis of
    • Discuss
    • 8. What happens during the process of translation?

    • Options
    • A. Transfer RNA is made from messenger RNA
    • B. Copies of DNA molecules are made
    • C. The cell uses information from messenger RNA to produce proteins
    • D. Messenger RNA is made from DNA
    • Discuss
    • 9. Secondary consumers are eaten by larger

    • Options
    • A. fast animal
    • B. animal in the third trophic level
    • C. herbivorous animal
    • D. predator
    • Discuss
    • 10. Spongy, porous bone tissue is also called

    • Options
    • A. Compact bone
    • B. Bone fissure
    • C. Yellow bone marrow
    • D. Cancellous bone
    • Discuss


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