A study looking at tone deafness in large families found that people who are tone deaf tend to have relatives who are also tone deaf. The authors of the study concluded that tone deafness is largely determined by genetics.
The fact that tone deafness runs in families could have other explanations than just genetics. For example, consider a family that lives near a toxic waste site. Many family members may get cancer, but shared genes are not the reason for the cancer-- the toxic waste site is. Families tend to share houses and lifestyles as well as genes.
To get around this problem, researchers often turn to fraternal and identical twins. Identical twins share 100% of their DNA, while fraternal twins only share about half of their DNA. Both types of twins usually grow up together and share most of the same environment.
If a trait is determined completely by genetics, identical twins should more often share that trait compared to fraternal twins. This is because they have the same DNA and fraternal twins only share half their DNA.
On the other hand, if a trait is determined mostly by the environment, both types of twins should be equally similar to each other. This is because they share pretty close to the same environments.
Researchers used a “twin study” to look into the genetics of tone deafness. They measured the ability of both identical and fraternal twins to pick out wrong notes in popular songs.
They found that identical twins were more likely to both be tone deaf but it wasn’t 100%. There were plenty of cases where one identical twin in a pair was tone deaf and the other wasn’t.
With some number crunching the researchers concluded that between 71 and 80% of tone deafness can be explained by genetics. The remaining percentage is likely due to things like how much the different families listened to music or if the kids took music classes.
1 view
18
3
2 months ago 00:04:01 1
Katy Perry - Chained To The Rhythm (Official) ft. Skip Marley
3 months ago 00:05:06 1
(FREE) Eminem x Hopsin Type Beat - “RED LIGHT“ | Squid Game Type Beat (Pendo46 x Lexnour)
3 months ago 00:04:13 1
Melania Trump Makes Bizarre Fashion Statement | The Daily Show With Trevor Noah
3 months ago 00:09:07 1
ETHICS of Artificial Intelligence | “Find something new“ by Ivanka Trump
4 months ago 00:03:02 1
Silent Hill 2 (2024) - “Theme of Laura“ Full Trailer | Official Konami
4 months ago 00:09:33 1
Kim Ok Ju, Choe Sol Hui & Co. - Medley of Russian Songs (로씨야노래련곡 / Попурри из Русских Песен)
4 months ago 00:03:14 1
Sweeney - Daddy-O (Official Video)
4 months ago 02:12:28 1
Cease Fire Plan DEBUNKED By Middle East Scholar & Palestinian Dr & Mexican Elections!
5 months ago 00:01:01 1
Roger Waters is practically tone deaf#rogerwaters#pinkfloyd#celebrity#funfacts#shorts#bandfacts#fyp
5 months ago 00:02:31 1
(FREE) NF Type Beat “ANGER“ | Dark Cinematic Type Beat | Scary Rap Beat | @RiddickXBeats Collab
5 months ago 02:57:29 1
ICC Plans To Arrest Netanyahu, Elon Goes Full Fascist, Protests Continue & More!
6 months ago 00:01:50 1
The Didgeridon’t
6 months ago 00:04:30 4
A Pirate I Was Meant to Be | Curse of Monkey Island Shanty recreated in Sea of Thieves Monkey Island
6 months ago 00:10:10 1
Trudeau HUMILIATED As PR Stunt COMPLETELY BACKFIRES!
6 months ago 00:03:23 1
Epic Motivational Rap Beat “FREEDOM“ | Aggressive Rock Guitar Type Beat | ( @JORDANBEATS Collab)
6 months ago 00:05:02 1
Eminem - Tone Deaf (Lyric Video)
7 months ago 00:03:02 1
[FREE] Diplomacy (NF Type Beat x Eminem Type Beat x Dark Piano) Prod. Zaico R
7 months ago 00:11:44 1
Media’s Tone Deaf Coverage of Aaron Bushnell’s Death Omits Crucial Context
7 months ago 00:02:20 13
Silent Hill 2 (2022) - “Theme of Laura“ Trailer 2 | Official Konami
7 months ago 00:09:37 1
Trudeau HUMILIATED after Alberta Visit
7 months ago 00:13:23 1
U.S. Ambassador Calls For ‘Final Solution’ In Gaza
8 months ago 00:05:58 1
(FREE FOR PROFIT) Eminem Type Beat “MURDER“ | Diss x Freestyle Type Beat | Slim Shady Type Beat
8 months ago 00:03:35 1
(FREE FOR PROFIT) Eminem Type Beat “CHAOS VIII“ | Hard Freestyle Type Beat | Free type beat 2022
8 months ago 00:01:07 1
Abbott Elementary Season 3 Trailer (HD) comedy series