For most biology lessons, "attached earlobe" is considered to be a recessive trait.

That means that if your mother and your father both have attached earlobes as specified in the question, they do not have a dominant gene to give you.

Both genes of both parents must be recessive, so your own genes must be "Two recessives" as well.

And you automatically have attached earlobes yourself.

Let A represent the dominant gene for this trait (free earlobes)

Let a represent the recessive give (attached earlobes)

Since "everyone in your family" has attached earlobes, that goes for your mother and father too.

So they are

attached × attached

. . .aa. . . ×.. . aa.

If a parent had an A allele, the earlobe would not be attached, so no parent even has an A gene in the first place.

That means that each parent has to donate an a gene to you, so your genotype is

aa

(attached)

https://images.squarespace-cdn.com/content/v1/5808...

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However, there is some controversy about whether "attached" actually is simply a Mendelian recessive trait

https://www.popsci.com/earlobe-shape-genetics/

https://udel.edu/~mcdonald/mythearlobe.html

are attached ear lobes recessive?

😄

No.

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