Question

which best matches a type of genetic material with its description?
nucleotides form a helical structure that is called a gene.
genes combine to form structures called nucleotides.
chromosomes create genes.
dna is located in the nucleus.

Explanation:

• Nucleotides form a helical structure called DNA, not a gene. A gene is a segment of DNA.
• Nucleotides combine to form DNA, and genes are parts of DNA. So genes do not form nucleotides.
• Genes are segments of chromosomes. Chromosomes do not “create” genes in the sense of making new genetic material de - novo; genes are already present as segments on chromosomes.
• DNA is located in the nucleus (in eukaryotic cells). In prokaryotic cells, there is no nucleus, but the question does not specify cell type, and in the context of general genetic material description for students learning basic genetics (where eukaryotic cells are often the first focus), this is a correct statement.

Answer:

DNA is located in the nucleus.