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How do diploid chromosome numbers vary among Homo sapiens, Pan troglodytes, Canis familiaris, Oryza sativa, and Parascarsis equorum?
How do diploid chromosome numbers vary among Homo sapiens, Pan troglodytes, Canis familiaris, Oryza sativa, and Parascarsis equorum?
Answer
The diploid chromosome numbers for the organisms you mentioned are as follows:
Diploid Chromosome Numbers
| Organism | Diploid Chromosome Number (2n) |
|---|---|
| Homo sapiens | 46 |
| Pan troglodytes (Chimpanzee) | 48 |
| Canis familiaris (Domestic Dog) | 78 |
| Oryza sativa (Rice) | 24 |
| Parascarsis equorum | 18 |
Details of Each Organism
- Homo sapiens (Humans):
- Humans have a diploid chromosome number of 46 (23 pairs). This includes 22 pairs of autosomes and one pair of sex chromosomes (XX for females and XY for males).
- Pan troglodytes (Chimpanzees):
- Chimpanzees have a diploid chromosome number of 48 (24 pairs). They have a similar genetic makeup to humans, but with two additional chromosomes.
- Canis familiaris (Domestic Dogs):
- Domestic dogs have a diploid chromosome number of 78 (39 pairs). This higher number reflects the genetic diversity within the species.
- Oryza sativa (Rice):
- Rice has a diploid chromosome number of 24 (12 pairs). This relatively low number is common among many plant species.
- Parascarsis equorum:
- The roundworm Parascarsis equorum has a diploid chromosome number of 18 (9 pairs). This is typical for many nematodes.
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