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The condition in which a diploid cell has an extra chromosome is called?
Wiki User
∙ 14y ago
Polyploidy is the condition in which a normally diploid cell or organism acquires one or more additional sets of chromosomes. In other words, the polyploid cell or organism has three or more times the haploid chromosome number. Polyploidy arises as the result of total nondisjunction of chromosomes during mitosis or meiosis.
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∙ 12y ago
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What is a normal cell with a double set of chromosomes?
it depends on what the cell started out asif its normal number is monoploid, meaning that it has a full set of chromosomes, but only one of each then a double set would be diploid.eukaryotes typically are diploid, but our sex cells are haploidprokaryotes typically have have monoploid numbers.so we have 23 PAIRS of chromosomes but 46 total and just 23 in our sex cells.so we will start with an exampleif you cell originally had 5 chromosome it is monoploid double that .. diploid with 10 chromosomes 2 of each ,,,,double diploid would be tetraploid with 20 chromosomes 4 of each.HOWEVER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!if you are talking about a cell which has an extra copy of a SINGLE chromosome then it is a different storyif the cell is eukaryotic and it has a diploid number then it would be called a trisomicex if a human had an extra chromosome he would have 47 chromosomes and would be a trisomic
What are the causes of heredity diseases?
The causes of a hereditary disease is a missing chromosome, and extra chromosome. Like in Down Syndrome there is an extra chromosome 26.
What condition occurs when a human zygote has 47 chromosomes?
Trisomic condition in which there is one extra chromosome on an autosome. For eg. Down's Syndrome
Why is monosomy worse than trisomy?
Monosomy occurs when one chromosome is absent from the normal diploid number. This is referred to as aneuploidy which is the loss or gain of a chromosome during meiosis.An example of monosomy is Turner Syndrome. One of the sex chromosomes is missing. In an unaffected female there are 2 'X' chromosomes. But in Turner Syndrome there is one sex chromosome missing.Trisomy occurs when there is three copies of a chromosome instead of the normal diploid number. This is also referred to as aneuploidy because there was an extra chromosome added hence, an abnormal amount of chromosomes.An example of trisomy is in Trisomy 21(Downs Syndrome) in which chromosome 21 has an extra chromosome.
What condition results when a child is born with an extra chromosome on the third pair?
Down syndrome
A diploid cell missing a chromosome is called a?
The condition in which a diploid cell is missing a chromosome or has an extra chromosome is called aneuploidy.
What is it when a diploid has an extra chromosome?
no
What is trisomics?
A diploid cell with an extra chromosome. Basically a diploid with an extra chromosome of one type, producing a chromosome number of the form 2n + l.
What condition is caused by a chromosome going the wrong way during genetic formation producing a zygote with an extra chromosome?
An abnormal number of chromosomes is called aneuploidy. If a chromosome has 3 of its kind, it is trisomic. The exact condition depends on which gene has the extra chromosome.
What are tetrasomics?
Addition of a pair of chromosomes to a diploid set results in tetrasomic condition. Tetrasomics may be represented as 2N+2. Tetrasomics may arise when two abonormal gametes produced as a result of non-disjuction unite, with each gamete carrying an extra chromosome of the same pair as shown below. AABBCCDD a diploid cell----meiosis and non disjuction AABC Gamete carrying an extra chromosome--- BC Gamete short of one chromosome. Now if this Gamete (AABC) unites with another gamete of the same kind (AABC), we get tetrasomic AAAABBCC.
Genes are what section of a chromosome?
The extra extra Long one! There called cariapas
A congenital endocrine condition caused by the presence of an extra X chromosome is?
DOWNS Syndrome.
What is an extra set of chromosome?
The condition in which an organism has complete extra sets of chromosomes is called polyploidy. This condition can cause a number of severe birth defects. Most do not live a full lifespan for their species.
What is it called when extra copies of part of a chromosome are made?
Duplication
Down syndrome is usually caused by an extra copy of what chromosome?
Down syndrome occurs because of the extra chromosome on chromosome 21. If you go onto google images and type in karyotype of Down syndrome, you will find a picture of the extra chromosome. Instead of having two chromosomes on chromosome 21, there is an extra. Type your answer here...
What is the medical condition mosaicism?
A type of trisomy, where only some of the cells in the body have the extra chromosome.
What condition results when a child is born with extra chromosome on the twenty -first pair?
Down syndrome
