分句-1 There is a genetic or inherited element to handedness. 子句类型: 宾语从句 连接词: THAT 3. 句子成分 主句 Research [主语] has shown [谓语] something. [宾语] 分句-1 There [表语] is [系动词] a genetic or inherited element [主语] to handedness. [定语]4...
They have believed the reason is genetic.They say the gene(基因) increases the chance of being left-handed. It appears to play an important part in deciding which part of the brain controls different activities. In right-handed people, the left side of the brain usually controls speech and ...
Scientists do not really know why some people are left-handed. They have believed the reason is genetic.They say the gene(基因) increases the chance of being left-handed. It appears to play an important part in deciding which part of the brain controls different activities. In right-handed ...
Dark DNA is the genetic code in the human genome that currently has no known original source. We have traced 8% of the human genome to viruses. 1-2% of our genome comes from other animals. Believe it or not you share 55% of your genetic code with a banana – and that’s not just...
Most scientists believe that DNA randomly arose as a right handed structure, and all DNA that has evolved since has had to follow that structure. DNA’s right-handedness may also be due to the Earth’s natural rotation, early human tire swing experimentation, or because our DNA is just too...
These findings are fascinating and important since hair-whorl direction is a Based on data on handedness and hair-whorl direction, Amar Klar proposed a genetic model ("random-recessive model") in that a single gene with two alleles controls both handedness and hair-whorl orientation (Klar, A...
Handedness is associated with asymmetries in gyrification of the cerebral cortex of chimpanzees. Cereb. Cortex 17, 1750–1756 (2007). Article PubMed Google Scholar Llinares-Benadero, C. & Borrell, V. Deconstructing cortical folding: genetic, cellular and mechanical determinants. Nat. Rev. ...
But first, if you look up “fitness” in the OED, you’ll see that the first six definitions show a usage beginning well before Darwin, and it’s only the seventh (added in 1993) uses the evolutionary-genetic definition. Using “fitness” as an indication of relative “well-o...
Some evidence exists that the phenomenon is genetic, but geneticists cannot agree on the process by which handedness may be passed on by inheritance. Social and cultural forces can also cause a preference for one hand, as when teachers or parents force a naturally left-handed chil...
To date, variation in handedness in human and other animals is likely attributable to the complex interactions between genetic and environmental factors18, 19. Development of brain asymmetry and visual lateralization was shown to be affected by light stimulation during the embryonic stage in chicks20...