Which best describes the storage of the genetic code? A gene is a segment of DNA, a condensed DNA molecule makes up a chromosome, a chromosome is inside a nucleus, and a nucleus is contained within a cell. A DNA molecule is a segment of a gene, a gene makes up a chromosome, a chromosome is inside a cell, and a cell is contained within a nucleus. A gene is a segment of a chromosome, a condensed chromosome makes up a DNA molecule, a DNA molecule is inside a nucleus, and a nucleus is contained within a cell. A DNA molecule is a segment of a chromosome, a chromosome makes up a gene, a gene is inside a cell, and a cell is contained within a nucleus
The Correct Answer and Explanation is:
The correct description is:
A gene is a segment of DNA, a condensed DNA molecule makes up a chromosome, a chromosome is inside a nucleus, and a nucleus is contained within a cell.
Explanation:
- Gene and DNA: A gene is a specific segment of DNA that carries the instructions for making proteins, which are crucial for cellular functions. DNA is the molecule that stores genetic information.
- Condensed DNA and Chromosome: In eukaryotic cells, DNA is tightly coiled and condensed into structures known as chromosomes. This condensation is essential for organizing and protecting the DNA during cell division, and it allows the cell to manage the large amounts of genetic material efficiently.
- Chromosomes and Nucleus: Chromosomes are located within the nucleus of eukaryotic cells. The nucleus is the control center of the cell, housing the cell’s genetic material, and it is separated from the rest of the cell by the nuclear membrane.
- Nucleus and Cell: The nucleus is contained within the cell, specifically in the cytoplasm, which is surrounded by the cell membrane. This arrangement ensures that the cell can regulate the activities of the DNA, including gene expression and replication.
This hierarchy — gene → DNA → chromosome → nucleus → cell — accurately reflects how genetic information is organized and stored within eukaryotic cells. Each level of organization serves to protect and regulate the genetic material, ensuring that it is available for use when needed while maintaining cellular integrity.
