Where are chromosomes primarily located in a cell?

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Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

Where are chromosomes primarily located in a cell?

Explanation:
Chromosomes are long, wrapped DNA molecules that carry genetic information, and in most cells they are found in the nucleus. The nucleus is the membrane-bound compartment that houses the cell’s DNA and organizes it into chromosomes, coordinating replication and transcription. The other options don’t fit because the cytoplasm is the fluid outside the nucleus where many processes and organelles reside, mitochondria contain some DNA but not the organized chromosome structures found in the nucleus, and ribosomes are the sites of protein synthesis and do not house chromosomes.

Chromosomes are long, wrapped DNA molecules that carry genetic information, and in most cells they are found in the nucleus. The nucleus is the membrane-bound compartment that houses the cell’s DNA and organizes it into chromosomes, coordinating replication and transcription. The other options don’t fit because the cytoplasm is the fluid outside the nucleus where many processes and organelles reside, mitochondria contain some DNA but not the organized chromosome structures found in the nucleus, and ribosomes are the sites of protein synthesis and do not house chromosomes.

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