Scientoon on Genes associated with Eye colour

The study indicates that 124 independent associations arising from 61 discrete genomic regions are associated with eye colour. The study is published in Science Advances on 10th March 2021. 

Here one can find Scientoon based on the above research. 

Reference: Genome-wide association study in almost 195,000 individuals identifies 50 previously unidentified genetic loci for eye color

 

Scientoon on "Genes determine the person's face"

 

Scientoon on "Genes determine the person's face" published in Science advance of with the group of scientists from various organizations.

 

 

April 25th is celebrated as World Malaria day. Coincidently, Cartoon I prepared today is based biting preference of mosquito and genetic of person. It is based on research published in PLOS ONE on 22nd April, 2015. One can read general article on it at www.sciencenews.org and original paper at http://journals.plos.org.

Feel free to share it because it is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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Penguins lost ability to taste fish

 

Sensing its biotic and abiotic environmental cues is critical to the survival and reproduction of any organism. Generally vertebrates can recognize sweet, umami, bitter, sour and salty. Genetic analysis shows that the sweet, umami, and bitter tastes have been lost in all penguins.

Zhang and colleagues made the determination after sequencing the genomes for Adelie and emperor penguins. The researchers were surprised that they couldn’t find some basic taste genes, so they took a closer look at penguin DNA. This led the scientists to conclude that all penguin species lack functional genes for the receptors of sweet, umami and bitter tastes.

Sweet, umami and bitter flavors are temperature sensitive. Such taste will not be sensed in cold region. This would be one reason that they lost the gene also. Further it is known fact that penguin is swallowing food, not masticating.

Link to general articles on it:

http://www.bbc.com/news/science-environment-31490623?print=true

http://news.discovery.com/animals/endangered-species/penguins-have

https://www.sciencenews.org/article/penguins-it%E2%80%99s-matter-no-taste

Link to original research paper:

http://www.cell.com/current-biology/abstract/S0960-9822%2815%2900057-3

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