Which is the correct order from smallest to largest? 1) nucleotide, codon, gene, chromosome 2) codon, nucleotide, gene, chromosome 3) nucleotide, codon, chromosome, gene

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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**Quiz Question: Determining the Correct Biological Order**

**Question:**
Which is the correct order from smallest to largest?

**Options:**

- 1) Nucleotide, codon, gene, chromosome
- 2) Codon, nucleotide, gene, chromosome
- 3) Nucleotide, codon, chromosome, gene
- 4) Codon, nucleotide, chromosome, gene

**Explanation:**
This question tests your understanding of molecular biology, specifically the relative sizes and organizational hierarchy of DNA components.

- **Nucleotide:** The smallest unit, a nucleotide is a building block of DNA or RNA, consisting of a base (adenine, thymine, guanine, cytosine, or uracil), a sugar molecule, and a phosphate group.
- **Codon:** A sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule.
- **Gene:** A segment of DNA that contains the necessary code to make a protein or RNA molecule. Genes consist of multiple codons.
- **Chromosome:** The largest structure in this list, a chromosome is a long DNA molecule with part or all of the genetic material of an organism.

To answer correctly, arrange these from the smallest unit to the largest structure.
Transcribed Image Text:**Quiz Question: Determining the Correct Biological Order** **Question:** Which is the correct order from smallest to largest? **Options:** - 1) Nucleotide, codon, gene, chromosome - 2) Codon, nucleotide, gene, chromosome - 3) Nucleotide, codon, chromosome, gene - 4) Codon, nucleotide, chromosome, gene **Explanation:** This question tests your understanding of molecular biology, specifically the relative sizes and organizational hierarchy of DNA components. - **Nucleotide:** The smallest unit, a nucleotide is a building block of DNA or RNA, consisting of a base (adenine, thymine, guanine, cytosine, or uracil), a sugar molecule, and a phosphate group. - **Codon:** A sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule. - **Gene:** A segment of DNA that contains the necessary code to make a protein or RNA molecule. Genes consist of multiple codons. - **Chromosome:** The largest structure in this list, a chromosome is a long DNA molecule with part or all of the genetic material of an organism. To answer correctly, arrange these from the smallest unit to the largest structure.
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