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Trisomy 21, Down's syndrome, is viable.

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13y ago

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Triploid organisms have copies of each chromosome?

In triploid organisms, there are three sets of chromosomes in each cell. This can lead to genetic imbalances and affect the organism's development and viability. Triploidy commonly occurs in plants, but can also occur in animals, including humans.


When cells contain three copies of a chromosome it is called?

Triploid.


Why do you think in humans there are no viable trisomies of chromosome 1?

they are lethal and cause spontaneous abortion of the embryo early in development.


What is the Term for an organism with the chromosome designation 3n?

An organism with the chromosome designation 3n is called triploid. Triploid organisms have three sets of chromosomes instead of the usual two sets found in diploid organisms. This can lead to infertility and developmental abnormalities in some species.


If a cell of a usually diploid species with 42 chromosome per cell is triploid this cell would be expected to have?

If a diploid number is 42, then the haploid number is 21. A triploid number would be 63. But why would you have the chromosomes from 3 parents combining?


What is the diploid chromosome number in humans?

The diploid chromosome number in humans is 46.


If the chromosome no of a plant is 16 what would the chromosome no of the ploidy level of the microspore mother cell and the endosperm cells be?

If the chromosome number of a plant is 16, then the ploidy level of the microspore mother cell would be 2n=16 (diploid) and the endosperm cells would typically be 3n=24 (triploid), as they result from the fusion of a haploid sperm cell and a diploid central cell in double fertilization.


What kind of Cell results when a diploid and a haploid gamete fuse during fertilization?

I am not sure what your saying, but i think you mean "what are the haploid cells involved in fertilization?" In this case the answer would be " sperm and egg cells", which then makes a diploid.


What would happen to the chromosome number in the offspring if meiosis did not occur?

we will get a zygote with triploid chromosomal content,but this case is inviable so the embryo will die after a certain period.


What are aoutosomes?

Any chromosome that is not a sex chromosome. humans have 44


Which type of chromosomal abnormalities is most likely to be viable in humans?

Trisomy 21 (Down syndrome) is the most common type of chromosomal abnormality that is viable in humans. Individuals with Down syndrome have an extra copy of chromosome 21, which can result in distinctive physical characteristics and developmental delays, but many individuals with Down syndrome lead healthy and fulfilling lives.


What is meant by a triploid organism?

The diploid cell is one wherein each chromosome has its homologous counterpart for pairing during meiosis. Diploid cells are formed by gametic union and after completion of meiosis in a diploid cell haploid cells are formed. These haploid cells get converted into gametes to unite again to form the diploid cell.