Asked by barthonamey
The model shows the relationships among the nucleus, a chromosome, and a DNA molecule.
Which statement is true about a chromosome?
A chromosome is another name for a gene.
A chromosome is present in the cytoplasm of the cell.
A chromosome is a tightly coiled structure composed of one gene.
A chromosome is a tightly coiled structure composed of a DNA molecule.
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A chromosome is a tightly coiled structure composed of a DNA molecule.
Explanation: chromosomes are DNA (wrapped around proteins called histones) condensed into a compact form and contain many genes. They are located in the nucleus of eukaryotic cells (prokaryotes have a circular chromosome in the nucleoid, not a nucleus).
Explanation: chromosomes are DNA (wrapped around proteins called histones) condensed into a compact form and contain many genes. They are located in the nucleus of eukaryotic cells (prokaryotes have a circular chromosome in the nucleoid, not a nucleus).
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