Which best matches a type of genetic material with its description?

A. Nucleotides form a helical structure that is called a gene.

B. Genes combine to form structures called nucleotides.

C. Chromosomes create genes.

D. DNA is located in the nucleus.

Answer

The best match for the type of genetic material with its description is:

D. DNA is located in the nucleus.

Explanation:

A. Nucleotides form a helical structure that is called a gene.

This statement is inaccurate. Nucleotides are the building blocks of DNA, but a gene is a segment of DNA that contains the instructions for making a protein. Genes do not directly form a helical structure; rather, DNA, which consists of nucleotides, has a double helix structure.

B. Genes combine to form structures called nucleotides.

This is incorrect because genes do not combine to form nucleotides. Instead, nucleotides are the individual units that make up DNA, and genes are made up of sequences of these nucleotides.

C. Chromosomes create genes.

This statement is misleading. Chromosomes are structures made up of DNA and proteins, and they contain genes. Genes are segments of DNA that reside on chromosomes, so it would be more accurate to say that genes are found on chromosomes, rather than chromosomes creating genes.

D. DNA is located in the nucleus.

This statement is true. DNA (deoxyribonucleic acid) is primarily located in the nucleus of eukaryotic cells. This is a correct and straightforward description of the relationship between DNA and its location within the cell.

Thus, option D is the most accurate description of genetic material in this context.