Flying Squirrels Essay examples -- Biology, DNA

Flying squirrels is in subfamily Petauristinae. They are arboreal and nocturnal. They do not actually fly, but locomote between trees by a gliding membrane (patagium). This membrane connects the cause legs to the back legs (Parr, 2003). In another word, a furry parachute-like membrane stretches from carpus to ankle. Flaps of skin connecting limbs to body provide a wing-like surface. All species induce reddish eyeshine, brighter in the large species than the smaller ones which may be instead dim. The subfamily shows severe taxonomic complications, with little agreement among mammalian researchers (Parr, 2003). Giant quick squirrels (Petaurista sp.) pick up highest diversity in term of richness in universe of discourse in Southeast Asia. This species is large in size, being on ordinary 422 mm long. The Red Giant Flying Squirrel is believed to mate twice a year and the young are typically born in swear out or August in litters of 2 - 3 (Parr, 2003). The Indochinese desktop s quirrel (Menetes berd more thani) is a member of the family Sciuridae. The family has only 29 species of 14 genera in Thailand (Lekagul and McNeely, 1977, 1988 Par, 2003). The characteristics of the Indochinese ground squirrel are black mid-dorsal stripe, two or deuce-ace black stripes on the sides, and reddish brown fur on the back (Lekagul and McNeely, 1977, 1988 Par, 2003). Identification is more difficult during the dry season, however, when they are much less brightly colored. They have been found throughout Southeast Asia, from the east of Myanmar to Vietnam. As a ground squirrel, it is rarely found on trees, but spends most of the duration in the thick underwoods of the rainforests. (Walston and Duckworth, 2008).The sizes of squirrels are variable between species. There are three types of... ...th at least one restriction enzyme and sequencing the ends of the resulting fragments using an Illumina Genome Analyzer in order to essay the genomes of multiple individuals in a population (Baird et al., 2008). The turn over advantage of RAD is that it gives information for a very large routine of loci across the genome, and for the same loci in each individual sampled. The current method acting for accelerating targeted sequencing from ancient and highly degraded DNA includes the linking of multiplex PCR directly with sample barcoding and high-throughput sequencing. The method creates the chance to generate many kilobases of overlapping sequence data from 31 cave bear (Ursus spelaeus) ancient specimens at the same time (Stiller et al., 2010). It seems likely that in the future high-throughput sequencing technologies will have many advantages for the study of ancient DNA.