DNA Structure and Function Worksheet
An 11th-grade science worksheet covering the fundamental structure and functions of DNA, including its components, replication, and role in heredity.
Includes
Standards
Topics
DNA Structure and Function
Name:
Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following is NOT a component of a DNA nucleotide?
Deoxyribose sugar
Phosphate group
Ribose sugar
Nitrogenous base
2. The two strands of a DNA molecule are held together by:
Covalent bonds
Ionic bonds
Hydrogen bonds
Peptide bonds
3. The process by which DNA makes an identical copy of itself is called .
4. In DNA, adenine (A) always pairs with , and guanine (G) always pairs with .
5. Describe the double helix structure of DNA, including the roles of the sugar-phosphate backbone and nitrogenous bases.
6. Explain the central dogma of molecular biology. What are the three main processes involved?
7. RNA contains deoxyribose sugar.
True
False
8. DNA replication is a conservative process.
True
False
9. Label the following diagram of a DNA double helix:
A:
B:
C:
D:
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