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Yes, the trait for unattached earlobes is autosomal. This means that the gene responsible for determining earlobe attachment is located on one of the non-sex chromosomes.

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1y ago

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Are earlobes a recessive gene?

Yes, the inheritance of free-hanging earlobes (referred to as the "unattached" phenotype) is often thought to follow a simple recessive pattern, with the unattached earlobes trait being recessive to attached earlobes. This means that to have free-hanging earlobes, an individual would need to inherit two copies of the recessive allele.


What happens when a person receives on alle for attached earlobes and one for unattached earlobes?

there one alle for free ear-lobes and another allele for attached if your gene for ear-lobes is made up of two alleles for free ear-lobes your ear-lobes are NOT attached and if you have two attache-ear-lobes alleles your ear-lobes are attached


In the family tree below people with the recessive trait of attached earlobes are shaded gray. What must be true about the person labeled A?

Person A must carry at least one dominant allele for unattached earlobes, as they are not shaded gray and therefore do not express the recessive trait of attached earlobes. If A had two recessive alleles, they would exhibit the attached earlobe trait. Additionally, A could be homozygous dominant or heterozygous for the trait, meaning they might have a parent or sibling with attached earlobes as a result of inheriting the recessive allele.


Is detached earlobes recessive or dominant?

Dominant. he has a homozygous genotype


What is the phenotype of a man who has 2 parents with free hanging earlobes if one parent is homozygous and the other parent is heteroygous... what are his possible genotypes?

The man could have either free hanging or attached earlobes. His possible genotypes could be either homozygous for free hanging earlobes (LL) or heterozygous for free hanging and attached earlobes (Ll).

Related Questions

Why do more people have attached rather than unattached earlobes?

The presence of attached or unattached earlobes is determined by genetics. The trait for unattached earlobes is dominant, meaning that it is more common in the population. This is why more people tend to have attached earlobes.


Both you and your sister or bother have attached earlobes yet your parents have unattached earlobes unattached earlobes are dominant over attached earlobes what are the genotypes of your parents?

If both you and your sibling have attached earlobes (aa genotype) and your parents have unattached earlobes, then your parents must both be carriers of the recessive allele for attached earlobes (Aa genotype).


Name an inherited characteristic?

Attached or unattached earlobes.


How can you tell if you have attached or detached earlobes?

If they attach directly to the side of the head, they are attached earlobes. If they don't they are unattached.


If both of the parents have attached earlobes what is their genotype?

The phenotypes of attached and unattached earlobes do not fit neatly into the Mendelian theory of two alleles for one trait, and there is a continuum of earlobe phenotypes. That said, unattached earlobes are a dominant trait, so if the individual is homozygous for unattached earlobes, all of her offspring will have the unattached phenotype, even if some or all of them are heterozygous.


What is the difference between attached and unattached earlobes?

Attached earlobes is when the ear lobe(the bottom part of your ear that ear-rings are normally fitted) is attached to your face so that it makes a long connection to it. Unattached earlobes are rounded and "hang" from the bottom of your ear.


Are earlobes a recessive gene?

Yes, the inheritance of free-hanging earlobes (referred to as the "unattached" phenotype) is often thought to follow a simple recessive pattern, with the unattached earlobes trait being recessive to attached earlobes. This means that to have free-hanging earlobes, an individual would need to inherit two copies of the recessive allele.


Are ear lobs that are attached dominant or recessive?

It was said earlier that, "Unattached earlobes are the dominant trait, twice as many people have unattached earlobes compared to attached." There is not actually any real proof that unattached earlobes are dominant. While more people may have unattached earlobes, attached earlobes are dominant. This was proved in a pedigree which covered three generations of extended families.


What happens when a person receives on alle for attached earlobes and one for unattached earlobes?

there one alle for free ear-lobes and another allele for attached if your gene for ear-lobes is made up of two alleles for free ear-lobes your ear-lobes are NOT attached and if you have two attache-ear-lobes alleles your ear-lobes are attached


Does gender matter when determining the odds of someone having attached or unattached earlobes?

No knucklebrain


If a father has unattached ear lobes and a mother has attached ear lobes what will their children have?

my dad has attached earlobes, my mum has unattatched earlobes and me and my 2 brothers all have unattatched earlobes. :) hope this helps


Which is better attached or unattached earlobes?

Unattached earlobes for sure, attached lobes look silly with earrings. It's a known fact that terrible people have been known to have attached earlobes, like Hitler and Meaghan Burke. They are less wind resistant, people with unattached lobes are faster. Furthermore, its fun to flick unattached lobes, there isn't much you can do with attached lobes. in conclusion, if you have attached lobes i highly recommend making a doctors appointment for plastic surgery to make a slight incision in your lobe.