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- Microchromosome abstract "A microchromosome is a type of very small chromosome which is a typical component of the karyotype of birds, some reptiles, fish, and amphibians; they tend to be absent in mammals. They are less than 20 Mb in size; chromosomes which are greater than 40 Mb in size are known as macrochromosomes, while those between 20 and 40 Mb are classified as intermediate chromosomes. Microchromosomes are characteristically very small and often cytogenetically indistinguishable in a karyotype. While originally thought to be insignificant fragments of chromosomes, in species where they have been studied they have been found to be rich in genes. In chickens, microchromosomes have been estimated to contain between 50 and 75% of all genes. The presence of microchromosomes makes ordering and identifying chromosomes into a coherent karyotype particularly difficult. During metaphase, they appear merely as 0.5-1.5 μm long specks. Their small size and poor condensation into heterochromatin means they generally lack the diagnostic banding patterns and distinct centromere locations used for chromosome identification.".
- Microchromosome thumbnail ChickenChromosomesBMC_Genomics5-56Fig4.jpg?width=300.
- Microchromosome wikiPageID "25559445".
- Microchromosome wikiPageRevisionID "598815701".
- Microchromosome hasPhotoCollection Microchromosome.
- Microchromosome subject Category:Chromosomes.
- Microchromosome subject Category:Cytogenetics.
- Microchromosome subject Category:Nuclear_substructures.
- Microchromosome type Abstraction100002137.
- Microchromosome type Attribute100024264.
- Microchromosome type Constitution104933544.
- Microchromosome type Infrastructure103570372.
- Microchromosome type NuclearSubstructures.
- Microchromosome type Property104916342.
- Microchromosome type Structure104931965.
- Microchromosome comment "A microchromosome is a type of very small chromosome which is a typical component of the karyotype of birds, some reptiles, fish, and amphibians; they tend to be absent in mammals. They are less than 20 Mb in size; chromosomes which are greater than 40 Mb in size are known as macrochromosomes, while those between 20 and 40 Mb are classified as intermediate chromosomes. Microchromosomes are characteristically very small and often cytogenetically indistinguishable in a karyotype.".
- Microchromosome label "Microchromosome".
- Microchromosome label "Микрохромосомы".
- Microchromosome sameAs m.09rwqjk.
- Microchromosome sameAs Q6839356.
- Microchromosome sameAs Q6839356.
- Microchromosome sameAs Microchromosome.
- Microchromosome wasDerivedFrom Microchromosome?oldid=598815701.
- Microchromosome depiction ChickenChromosomesBMC_Genomics5-56Fig4.jpg.
- Microchromosome isPrimaryTopicOf Microchromosome.