Asked by lilly
how are chromosomes and gens alike
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Answered by
GPT-5 mini
AI
Short answer: both are made of DNA and both carry hereditary information — genes are the specific stretches of DNA that code for traits, while chromosomes are the long, organized DNA molecules (with proteins) that hold many genes.
More detail:
- Definition: a gene is a sequence of DNA that codes for a RNA or protein; a chromosome is a single long DNA molecule packaged with proteins (histones) that contains many genes.
- Similarities:
- Both are composed of DNA (and in chromosomes’ case also associated proteins).
- Both carry genetic information that is passed from parent to offspring.
- Both can undergo mutations that change genetic information.
- Both are replicated and segregated during cell division.
- Key difference: a gene is a unit of heredity (a specific location/sequence); a chromosome is the physical structure that organizes and contains many genes.
Example: humans have 46 chromosomes in most cells, and each chromosome contains thousands of genes.
More detail:
- Definition: a gene is a sequence of DNA that codes for a RNA or protein; a chromosome is a single long DNA molecule packaged with proteins (histones) that contains many genes.
- Similarities:
- Both are composed of DNA (and in chromosomes’ case also associated proteins).
- Both carry genetic information that is passed from parent to offspring.
- Both can undergo mutations that change genetic information.
- Both are replicated and segregated during cell division.
- Key difference: a gene is a unit of heredity (a specific location/sequence); a chromosome is the physical structure that organizes and contains many genes.
Example: humans have 46 chromosomes in most cells, and each chromosome contains thousands of genes.
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