Genetics

Found results: 1435

Genetics

Avoid boring conclusions

The Nobel laureate, who turned 80, stressed that he had never lost interest in science. At the same time, to the surprise of many, Watson stated that he practically did not do it all those years while he was in charge of the laboratory.

08.07.2008
Genetics

He, she, it: how animals choose their gender

How does temperature affect the sex of the embryo? The balance of sex hormones plays a decisive role here. During the formation of the body, sex hormones are responsible for the development of sex signs. In many organisms, female hormones are derivatives of male hormones. Certain enzymes are responsible for the transformation. It is their activity that may depend on temperature.

03.07.2008
Genetics

"Genes of homosexuality" – a secret weapon in the struggle of the sexes

Scientists have modeled the spread of potential homosexuality genes. The authors believe that these same genes are associated with increased fertility in women and represent a way to control and maintain balance in the entire population. Roughly speaking, the more gays there are on the planet, the more fertile women are, and vice versa.

20.06.2008
Genetics

A new genetic code of overweight has been found

People with two copies of the genetic combination affecting the MC4R gene weigh 1.5 kg more, and those who inherited two copies of the FTO gene weigh 2-3 kg. The presence of both combinations can "add" 3.8 kg to a person.

07.05.2008
Genetics

The Age of DNA

The book "The Age of DNA" helps to understand what a DNA molecule is — the basis of the foundations of the origin of life. We suggest reading one of the chapters of the book in an abbreviated version.

04.05.2008
Genetics

The mysteries of the fifteenth chromosome

In a certain section of the 15th chromosome, several patients showed giant deletions, up to a million nucleotides. All of them had mental underdevelopment in combination with epilepsy or abnormal brain activity.

28.04.2008
Genetics

Why do we need "unnecessary" genes

If a gene becomes unnecessary, then it should quickly fail under the influence of random mutations that are not eliminated by selection. But how to explain the high evolutionary stability of many of these genes?

22.04.2008
Genetics

Human population genetics: the first of a new wave of research

New techniques that provide simultaneous analysis of hundreds of thousands of genetic markers provide results sufficient to draw conclusions about interactions between human populations and prehistoric human migrations with a much higher degree of reliability than was previously possible.

26.02.2008
Genetics

Eva's Daughters: genes, history and geography

"Y-chromosomal Adam" and "mitochondrial Eve" are not real people, but virtual points from which the branching of the molecular family tree of mankind begins.

26.02.2008
Genetics

Sons of Adam: Genes, history and geography

Now any of us can determine our ancestry to the progenitors of mankind. However, not biblical, but molecular-genetic – "mitochondrial Eve" and "Y-chromosomal Adam".

26.02.2008
Genetics

Where are the most mutants?

Several research groups are trying to determine which of the human races' genomes contain more mutations and how dangerous these mutations are for its representatives.

22.02.2008
Genetics

Human evolution continues: new evidence

A group of French and Spanish scientists led by population geneticist Luis Quintana-Murzi has discovered new evidence in favor of continuing human evolution.

06.02.2008
Genetics

The shelf of genes has decreased

By the time the "draft" sequence of the human genome was published in 2001, the figure 35,000 was generally accepted, but now genetic catalogs include approximately 24,500 genes. A new bioinformatic study shows that the number of "real" genes is even smaller: about 20,500.

06.02.2008
Genetics

Schizophrenia genes are searched in the mountains

Scientists from the Human Genetic Adaptation Group of the N.I. Vavilov Institute of General Genetics of the Russian Academy of Sciences have been trying to identify the genes responsible for chronic diseases by studying representatives of the indigenous peoples of Dagestan for decades. Currently, the attention of researchers is focused on the genes that determine the occurrence of schizophrenia.

28.08.2007