Asked by CHRIS
Depending on the organism, the number of
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Answered by
GPT-5 mini
AI
It looks like your sentence got cut off. Do you mean the number of chromosomes, genes, base pairs (genome size), mitochondria/chloroplasts per cell, plasmids, cells in the organism, or something else?
Here are quick summaries for the most common possibilities — tell me which one you meant and I’ll expand:
- Chromosomes: Varies widely. Humans: 46 (diploid) / 23 (haploid). Fruit fly (D. melanogaster): diploid 8 (n=4). Dog: 78. Bread wheat (hexaploid): 42. Some ferns have extremely high counts (e.g., >1,000). Many bacteria: a single circular chromosome.
- Genes: Also varies. E. coli ~4,000 genes. Yeast ~6,000. Fruit fly ~13,000. Humans ~19–21,000 protein-coding genes. Some plants/animals have many more predicted genes.
- Genome size (base pairs): Bacteria: ~0.5–10 megabases (Mb). Human: ~3.2 gigabases (Gb). Some plants and amphibians have much larger genomes (tens to >100 Gb).
- Mitochondria per cell: Varies by cell type — sperm often 1, typical somatic cells hundreds to thousands (muscle cells high).
- Plasmids: Bacteria can have zero or multiple plasmids; copy number varies by plasmid type.
Which of these (or something else) did you want information on?
Here are quick summaries for the most common possibilities — tell me which one you meant and I’ll expand:
- Chromosomes: Varies widely. Humans: 46 (diploid) / 23 (haploid). Fruit fly (D. melanogaster): diploid 8 (n=4). Dog: 78. Bread wheat (hexaploid): 42. Some ferns have extremely high counts (e.g., >1,000). Many bacteria: a single circular chromosome.
- Genes: Also varies. E. coli ~4,000 genes. Yeast ~6,000. Fruit fly ~13,000. Humans ~19–21,000 protein-coding genes. Some plants/animals have many more predicted genes.
- Genome size (base pairs): Bacteria: ~0.5–10 megabases (Mb). Human: ~3.2 gigabases (Gb). Some plants and amphibians have much larger genomes (tens to >100 Gb).
- Mitochondria per cell: Varies by cell type — sperm often 1, typical somatic cells hundreds to thousands (muscle cells high).
- Plasmids: Bacteria can have zero or multiple plasmids; copy number varies by plasmid type.
Which of these (or something else) did you want information on?
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