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Down syndrome is neither dominant nor recessive.

It is "autosomal" or "other"; it is simply an error in the translation process of Chromosome 21 (three copies instead of two). Instead of 46 chromosomes, a person with Down syndrome will have 47.

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Peyton Beahan

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3y ago

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Related Questions

Is Down syndrome a dominant or recessive?

Down syndrome is neither dominant nor recessive. Actually, it is considered to be an "autosomal" trait. This occurs when there is damage to the chromosome.


Is down syndrome cause by dominant or recessive?

Down syndrome is neither caused by dominant or recessive chromosomes it is simply caused by an error in the translation process of chromosome 21.


Is apert syndrome dominant or recessive?

Apert syndrome is typically caused by a sporadic mutation in the FGFR2 gene and is not inherited in a simple dominant or recessive manner. It is considered an autosomal dominant condition, with most cases arising from new mutations.


Is down syndroe a dominant trait or ressive trait?

It is caused by the addition of the 21st chromosome, it is not inherited and so is neither dominant or recessive but it is highly correlated with the age of mothers. If the mother is 30, it is 1 in 910 chance of down syndrome, and 1 in 28 at age 45.


How can one determine whether a pedigree trait is dominant or recessive?

One can determine whether a pedigree trait is dominant or recessive by observing how the trait is passed down through generations. If the trait appears in every generation, it is likely dominant. If the trait skips generations, it is likely recessive. Genetic testing can also help confirm the inheritance pattern of the trait.


Is the extra copy of Chromosome 21 that causes Down syndrome dominant or recessive?

Down syndrome is neither caused by dominant or recessive chromosomes it is simply caused by an error in the translation process of chromosome 21.


Why is Down syndrome a recessive trait?

Down syndrome is not a recessive trait. Down syndrome is caused by a third copy on chromosome 21 and is present at conception or shortly after. It is mostly a random (and relatively common) occurrence, unless it is of the translocation type which is rare and genetic. Therefore it is NOT a trait.


How does pseudodominant inheritance manifest in genetic traits within a family?

Pseudodominant inheritance occurs when a recessive trait appears to be dominant in a family due to both parents carrying the recessive gene. This can lead to the trait being passed down to offspring, even though it is recessive.


Is it possible for 2 parents with down syndrome to produce a child with no non-disjunction disorder please explain why?

Since Down Syndrome is not genetic and is a trisomy, dominant and recessive genes do not play a role and it is possible for two down syndrome parents to have a child without down syndrome.


Is the trait being studied in the pedigree recessive or dominant?

This cannot be determined solely from a pedigree without additional information. The inheritance pattern of a trait can be deduced from the way it is passed down within a family and how it appears in the pedigree. Dominant traits will typically appear in every generation, while recessive traits may skip generations.


Is Williams syndrome dominant or recessive?

it is rarely inherited, and is often spontaneous. but when inherited, it is considered autosomal dominant condition and is usually passed down from someone with the condition to all of their offspring


Is downs syndrome dominant or reccesive?

Down syndrome is not classified as a dominant or recessive genetic trait; rather, it is typically caused by an extra copy of chromosome 21, a condition known as trisomy 21. This chromosomal abnormality occurs as a random event during cell division and is not inherited in a traditional Mendelian sense. Therefore, it does not follow the patterns of dominance or recessiveness seen in single-gene traits.