Rice Chromosome Number

Chromosome Number of Rice: 12

| | |

| — | — | | | |

| Species |

| Rice (Oryza sativa)

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| Ploidy |

| Diploid |

Name Age
John 20
Name Age
John 20

| Chromosome Number |

| 24

2n = 24, two sets of 12 chromosomes

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Chromosome Number of Rice: Ploidy and Representation

Rice (Oryza sativa) has a small genome of approximately 0.4 Gb (the size mentioned is that of the haploid genome in each of the cases); it has the simplest of the monocotyledonous genomes. The chromosome number is 2n = 24, n = 12 chromosomes.

Rice has a small genome of approximately 430 Mb, which is composed of 12 chromosomes (2n=24). This corresponds to approximately 1500 cM (centiMorgan), with each cM representing a mean of 290 kb and meiotic recombinations of 15. However, there is a great variation in genome size between different species of rice.

NEET Study Material (Biology)