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