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The haploid genome is about three billion base pairs long (3,000 Mb distributed over 19 autosomal chromosomes plus 1 respectively 2 sex chromosomes), therefore equal to the size of the human genome. [ citation needed ] Estimating the number of genes contained in the mouse genome is difficult, in part because the definition of a gene is still ...
A recent study using 89 whole-genome sequences revealed that the modern day Mus musculus castaneus emerged from an ancestral Mus musculus population in Indian subcontinent some time around 700 kya. From there, this ancestral population migrated to Iran around 360 kya to form Mus musculus domesticus and then to Afghanistan around 260 kya to form ...
The genetically modified mouse in which a gene affecting hair growth has been knocked out (left) shown next to a normal lab mouse. A genetically modified mouse, genetically engineered mouse model (GEMM) [1] or transgenic mouse is a mouse (Mus musculus) that has had its genome altered through the use of genetic engineering techniques.
The red viscacha rat (Tympanoctomys barrerae) has a record C-value among mammals—9.2 pg. [18] Although tetrapoidy was first proposed to be a reason for its high genome size and diploid chromosome number, Svartman et al. [19] showed that the high genome size was due to the enormous amplification of heterochromatin.
House mouse (Mus musculus) Phase-specific vocalizations of male mice at the initial encounter during the courtship sequence. A mouse (pl.: mice) is a small rodent. Characteristically, mice are known to have a pointed snout, small rounded ears, a body-length scaly tail, and a high breeding rate.
Comparative genomics starts with basic comparisons of genome size and gene density. For instance, genome size is important for coding capacity and possibly for regulatory reasons. High gene density facilitates genome annotation, analysis of environmental selection. By contrast, low gene density hampers the mapping of genetic disease as in the ...
The Japanese house mouse or Japanese wild mouse (Mus musculus molossinus) is a type of house mouse that originated in Japan. Genetically, it is a hybrid between the southeastern Asian house mouse (M. m. castaneus) and the eastern European house mouse (M. m. musculus).
Within these groups clustering is conserved, for example the clustering motifs of Homo sapiens and Mus musculus are more or less the same. [7] Spellman and Rubin (2002) made a transcriptome map of Drosophila. Of all assayed genes 20% was clustered. Clusters consisted of 10 to 30 genes over a group size of about 100 kilobases.