It have been able to extract a complete human genome from a “chewing gum” of 5700-year-old birch resin. Read this information to know more about it.
Puede usar las teclas derecha/izquierda para votar el artículo.Votación:1 estrella2 estrellas3 estrellas4 estrellas5 estrellas (4 votos, promedio: 4.25 sobre 5)
LoadingLoading...

Science

The importance of a chewing gum of 5700 years which a woman with blue eyes and dark hair probably chewed in Denmark

London / Scientists from the University of Copenhagen say, for the first time, they have been able to extract a complete human genome from something other than bones, specifically a “chewing gum” of 5700-year-old birch resin found in an excavation in Syltholm, southern Denmark, who was chewing by a woman with blue eyes and dark hair, probably.

 

 
That “gum”, obtained from heating the birch bark, has been used as an adhesive since the Middle Pleistocene (between 760,000 and 126,000 years ago), and the small pieces found in archaeological works contain teeth marks, which suggests they were chewed.

After sequencing the DNA found in that material, the scientists determined that the person who chewed it was a woman, probably with blue eyes and a dark skin and hair tone, genetically closer to the hunter gatherers of continental Europe than to the who lived in Scandinavia at that time.

The research, published by the journal ‘Nature’, also includes analysis of the DNA of plants, animals and microorganisms, also concentrated in the same material, which provides data on oral microbes and the type of food of the individuals of that time.

Besides, in the examination of the non-human genome found, the researchers detected characteristic species of oral bacteria, such as gingival porphyromonas, a pathogen known to cause infectious mononucleosis or glandular fever.

“It can help us understand how pathogens have evolved and spread over time, and what makes them particularly virulent in a given environment. At the same time, it could help us predict how the pathogen will behave in the future and how it could be contained or eradicated”, explains the study director and associate professor in the Danish university, Hannes Schroeder.

The results of the investigation also give clues about the diet of the individuals of the time through traces of genetic material from plants and animals, among which were samples of nuts and duck.

According to Schoereder, the material is a “valuable source” and unexplored of information about the genetic makeup of our ancestors, “especially in a period where there are no human remains”. (December 17, 2019, EFE/Practica Español)

News related in video (August 2018):


Comprehension

Comprehension

Congratulations - you have completed Comprehension. You scored %%SCORE%% out of %%TOTAL%%. Your performance has been rated as %%RATING%%
Your answers are highlighted below.
Question 1
La noticia dice que...  The news says that...
A
ha habido un avance científico
B
se ha celebrado un congreso de arqueología
C
se ha publicado un libro histórico
Question 2
Según la noticia... According the news...
A
en realidad no es la primera vez que se produce
B
ya se había conseguido antes
C
es la primera vez que se produce
Question 3
El descubrimiento tiene que ver con...
A
el pleistoceno
B
el genoma humano
C
los abedules
Question 4
Dice la noticia que una mujer...  The news says that a woman...
A
nunca mascaba chicle
B
probablemente mascaba ese chicle
C
fabricaba chicle de resina de abedul
Question 5
Esa investigación tiene relación con otros temas...  The research is related to other topics...
A
La verdad es que aún no se sabe con certeza
B
No, solo con el genoma humano
C
Si, sobre los microbios y la alimentación
Question 6
El vídeo habla sobre... The video, talks about...
A
los neandertales
B
la mujer del chicle
C
los denisovanos
Question 7
La historia del vídeo habla sobre... The history of the video talks about...
A
las costumbres de los neandertales
B
el cruce de especies de los antepasados del hombre
C
la defensa de los denisovanos
Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results
There are 7 questions to complete.

Noticias al azar

Multimedia news of Agencia EFE to improve your Spanish. News with text, video, audio and comprehension and vocabulary exercises.