Which statement accurately describes chromosomes?

Which statement accurately describes chromosomes?

• A. A lipid vesicle
• B. A DNA protein complex that is organized in a compact manner which permits the large amount of DNA to be stored in the nucleus
• C. A single gene
• D. A ribosome

Answer: (B)

The main concept is how chromosomes organize and store genetic material inside the nucleus. Chromosomes are DNA-protein complexes that compact long DNA strands so they can fit within the nucleus and be accurately inherited during cell division. In eukaryotic cells, DNA wraps around histone proteins to form nucleosomes, which further fold into higher-order structures, creating a densely packed chromatin that still allows genes to be accessed when needed. This explains why chromosomes are described as a DNA-protein complex organized in a compact manner to store the large amount of DNA in the nucleus. The other statements don’t fit: a lipid vesicle is a membrane-bound compartment, not a chromosome; a single gene is only a small part of a chromosome; a ribosome is a complex for protein synthesis, not the storage form of genetic material.

The main concept is how chromosomes organize and store genetic material inside the nucleus. Chromosomes are DNA-protein complexes that compact long DNA strands so they can fit within the nucleus and be accurately inherited during cell division. In eukaryotic cells, DNA wraps around histone proteins to form nucleosomes, which further fold into higher-order structures, creating a densely packed chromatin that still allows genes to be accessed when needed. This explains why chromosomes are described as a DNA-protein complex organized in a compact manner to store the large amount of DNA in the nucleus. The other statements don’t fit: a lipid vesicle is a membrane-bound compartment, not a chromosome; a single gene is only a small part of a chromosome; a ribosome is a complex for protein synthesis, not the storage form of genetic material.