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30 kwi 2021 · An earlobe is made up of connective tissues combined with a mixture of areola tissues and fat cells. Earlobes have a good blood supply, which helps in keeping them warm and maintaining balance....
1 gru 2017 · Most of the people, 64,950 customers from the genetic testing company 23andMe, simply reported to researchers whether or not their ear lobes were attached. Only around 9,710 of the people actually had researchers assign them to a group. They were split into attached, unattached and partially attached groups.
Most earlobes are either completely attached to the cheek or detached and only connected to the ear itself. We've got the genetic lowdown to help explain whether or not your ears hang low.
Most earlobes are either completely attached to the cheek or detached and only connected to the ear itself. We've got the genetic lowdown to help explain whether or not your ears hang low.
Earlobe attachment was analyzed as a semiquantitative phenotype (coded 0, 1, or 2 for free, partially attached, or attached earlobes, respectively) separately in the European American, Latin American, and Chinese cohorts.
If earlobes hang free, they are detached. If they connect directly to the sides of the head, they are attached. Earlobe attachment is a continuous trait: while most earlobes can be neatly categorized as attached or unattached, some are in-between.
Consider earlobe attachment. A single autosomal gene with two alleles determines whether you have attached earlobes or free-hanging earlobes. The allele for free-hanging earlobes (F) is dominant to the allele for attached earlobes (f). Other single-gene autosomal traits include widow’s peak and hitchhiker’s thumb.
