lactase persistence造句

• Lactase persistence is an example of such recent evolution.
• A at position-22018, have been independently linked to lactase persistence.
• The genetic variations for lactase persistence and greater height came with the Yamna people.
• The evolutionary processes driving the rapid spread of lactase persistence in some populations are not known.
• Subsequent research revealed intolerance was more common globally than lactase persistence, and that the variation was genetic.
• :: : Some human populations have developed Lactase persistence, in which lactase production continues into adulthood.
• Genetic analysis shows lactase persistence has developed several times in different places independently in an example of convergent evolution.
• The greater diversity of lactase persistence alleles in Africa is said to be the product of a soft selective sweep.
• In contrast, for societies which did not engage in pastoral behaviors, no selective advantage exists for lactase persistence.
• :: : The ability to digest lactose into adulthood ( known as " lactase persistence " ) is a likely candidate.
• Among East African and Middle Eastern groups, the  " 13915 T / G mutation is the most prominent allelic contributor to lactase persistence.
• :It's more accurate to call it " lactase persistence ", as baby humans have always had the enzyme ( lactase ) that digests lactose.
• Additionally, the specimen was homozygous C / C for the LP-13910-C / T lactase persistence SNP, indicating that he was lactose intolerant.
• In 2009 Thomas led a computer simulation study indicating that lactase persistence started to co-evolve with the culture of dairying in the LBK ( Linearbandkeramik ) culture.
• Studies have linked the occurrence of lactase persistence to two different single-nucleotide polymorphisms about 14 and 22 kilobases upstream of the 5-end of the LPH gene.
• None of the mutations so far identified have been shown to be exclusively causal for lactase persistence, and it is possible that there are more alleles to be discovered.
• Some human populations have developed lactase persistence, in which lactase production continues into adulthood probably as a response to the benefits of being able to digest milk from farm animals.
• :: : See the article sections about Lactase persistence # Evolutionary advantages and Baby-led weaning in humans . talk ) 14 : 00, 23 January 2016 ( UTC)
• Some population segments exhibit lactase persistence resulting from a mutation that is postulated to have occurred 5, 000-10, 000 years ago, coinciding with the rise of cattle domestication.
• Different alleles for lactase persistence have developed at least three times in East African populations, with persistence extending from 26 % in Tanzania to 88 % in the Beja pastoralist population in Sudan.