Nucleic Acids Review - Grade 9 Science
A comprehensive worksheet for Grade 9 science students covering the structure, function, and types of nucleic acids.
Includes
Standards
Nucleic Acids Review
Name:
Date:
Score:
Read each question carefully and provide your best answer. For multiple choice questions, circle the letter corresponding to your chosen answer. For fill-in-the-blanks, write your answer on the line provided. For short answer questions, use the space provided to explain your reasoning.
1. Which of the following is NOT a component of a nucleotide?
Phosphate group
Sugar (deoxyribose or ribose)
Amino acid
Nitrogenous base
2. What type of bond holds together the two strands of a DNA double helix?
Covalent bonds
Ionic bonds
Hydrogen bonds
Peptide bonds
3. The sugar found in DNA is , while the sugar found in RNA is .
4. In DNA, adenine (A) always pairs with , and guanine (G) always pairs with .
5. The process by which DNA is copied is called .
6. Describe the primary function of DNA in living organisms.
7. Briefly explain the difference in structure between DNA and RNA.
8. All living organisms use DNA as their genetic material.
True
False
9. RNA is typically a double-stranded molecule.
True
False
10. Label the following components of the DNA double helix.
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