-
尼安德特人和丹尼索瓦人的世界分布图
16-03-30 Africans possess at least a little bit Neanderthal DNA. But a new map of archaic ancestry--published March 28 in Current Biology--suggests that many bloodlines around the world, particularly of South Asian descent, may actually be a bit more Denisov...
-
水熊虫体内并不含大量外来DNA
16-03-29 Tardigrades, also known as moss piglets or water bears, are eight-legged microscopic animals that have long fascinated scientists for their ability to survive extremes of temperature, pressure, lack of oxygen, and even radiation exposure. Now, a stu...
-
甜玉米内与拥挤胁迫相关的基因被发现
16-03-16 Plants grown in high-density or crowded populations often put more energy into growth and maintenance than reproduction. For example, flowering may be delayed as plants allocate resources to growing taller and escape competition for light. This sens...
-
改变蚊子的遗传基因可能控制寨卡病毒传播
16-03-15 Genetic cues from male Aedes aegypti mosquitoes passed on during sex affect which genes are turned on or off in a females' reproductive tract post-mating, including genes related to blood feeding, egg development and immune defense, according to new...
-
科学家加强了CRISPR基因编辑技术
16-03-03 Scientists have developed a process that improves the efficiency of CRISPR, an up-and-coming technology used to edit DNA. Scientists all over the world are using CRISPR right now in their studies, but the technology is not as functional as it could...
-
发现DNA修饰的新方法
16-03-02 DNA is made from four nucleosides, each known by its own letter -- A, G, C, and T. However, since the structure of DNA was deciphered in 1953, scientists have discovered several other variants that are often added to the DNA sequences to replace one...
-
人类牙齿再生技术向前迈进一步
16-02-22 Good news for soda lovers: Scientists appear to be one step closer to being able to regenerate teeth in humans. A study in Developmental Biology explains how sharks and other marine life are able to regrow teeth continuously throughout their lives....
-
睡眠时长影响基因
16-02-20 In early 2013, the Sleep Research Centre at the University of Surrey found a direct link between hours spent sleeping and genes. 2013年初，英国萨里大学的睡眠研究中心发现，睡眠时长与基因之间存在直接联系。 Every cell in our bodies carries genetic inst...
-
科学家首次发现大脑中智力相关的基因集群
15-12-27 For the first time, scientists have identified two clusters of genes directly linked to human intelligence. 科学家们首次发现，大脑中存在两个与人类智力直接相关的基因集群。 Called M1 and M3, these so-called 'gene networks' appear to determine how smar...
-
新技术使修改动植物基因更简单
15-09-10 Within the past few years, a new technology has made altering genes in plants and animals much easier than before. The tool, called CRISPR/Cas9 or just CRISPR, has spurred a flurry of research that could one day lead to hardier crops and livestock,...
