DNA Structure and Function Worksheet
Explore the fundamental structure and function of deoxyribonucleic acid (DNA) with this comprehensive Grade 10 science worksheet.
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DNA Structure and Function
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Read each question carefully and answer to the best of your ability. Show all your work for calculations.
1. Which of the following best describes the structure of DNA?
A single helix
A double helix
A triple helix
A linear strand
2. Which of the following are the four nitrogenous bases found in DNA?
Adenine, Guanine, Cytosine, Uracil
Adenine, Guanine, Thymine, Uracil
Adenine, Guanine, Cytosine, Thymine
Adenine, Cytosine, Thymine, Ribose
3. The two strands of DNA are held together by bonds between the nitrogenous bases.
4. DNA replication is described as a process, meaning each new DNA molecule consists of one original strand and one newly synthesized strand.
5. RNA contains deoxyribose sugar, while DNA contains ribose sugar.
True
False
6. The sequence of nitrogenous bases in DNA dictates the sequence of amino acids in a protein.
True
False
7. Describe the main components of a DNA nucleotide.
8. Explain the concept of complementary base pairing in DNA.
9. Label the following diagram of a DNA double helix:
