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There are two problems I've heard about that can occur during meiosis.
1) Homologues (chromosomes that have the same kind of genetic information) might not separate during meiosis 1.
2) A fragment of a chromosome can be lost.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoDuring meiosis 2 in anaphase 2 when the chromosome are being pulled to opposite ends of the cells well they could get pulled to the same end and once the cells (there are two in meiosis 2) enter telophase 2 where the two cells split and become four cells, one of the four cells could get an extra chromosome and this results in downs syndrome.
Wiki User
∙ 14y agoDuring mitosis the two copies of the chromosomes separate and each cell gets an identical copy of the genes. The two copies are held together by a centromere (made of proteins), sometimes the two copies do not separate from this point. This is called "non-disjunction" and the result is that both copies get pulled to the end of one cell and the other cell is missing that chromosome.
Wiki User
∙ 13y agoThe negative consequences when meiosis goes wrong are:
*It may result in extreme abnormalities.
*Because of nondisjunction,it may lead to the following;
*Down syndrome-which are caused of the trisonomy of chromosome21.
*PATAU SYNDROME-caused by the trisonomy of chromosome 13 .
by JOSEPH KENNEDY OCARIZA-CANTABACO
FROM LNHS General Santos City
study hard,behave well......
Wiki User
∙ 10y agonondisjunction, trisomy 21, klinefelter, poly x females, jacob's syndrome, turner syndrome, karyotype, amniocentesis, CVS, deletion, william's syndrome, cri du chat, inversion, translocation, alagille syndrome
Wiki User
∙ 11y agoit dies.
Wiki User
∙ 9y agoA mutation.
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Occurs during prophase 1 of meiosis?
Mistakes such as nondisjunction can occur during meiosis. This is the result of chromosomes failing to separate equally during either anaphase.
When a child has Trisomy when does the mutation occur?
during meiosis
When do homologus chromosomes occur short answer please thankss?
Homologous chromosomes occur during meiosis. Meiosis reduces the chromosome number by half.
If child is born with trisomy when did the mutation occur?
during meiosis
What two factors introduce genetic variation during the process of meiosis?
The two factors that introduce genetic variation during the process of meiosis are independent assortment and chromosomal crossover. These occur during prophase 1 and anaphase 1 of meiosis.
Occurs during prophase 1 of meiosis?
Mistakes such as nondisjunction can occur during meiosis. This is the result of chromosomes failing to separate equally during either anaphase.
If a child is born with down syndrome when did the mutation occur?
During meiosis
What changes in the chromosomes occur during meiosis?
waht changes in the chromosomes occur during meiosis
How can mistakes occur during meiosis?
Mistakes such as nondisjunction can occur during meiosis. This is the result of chromosomes failing to separate equally during either anaphase. Therefore each resulting cell will not get an equal number of chromosomes. This can result in diseases such as down syndrome (Trisomy 21, where there are 3 copies of the 21st chromosome present instead of the normal 2), or gender complications such as Klinefelter's (XXY) or Turner's (XO) syndromes.
When a child has Trisomy when does the mutation occur?
during meiosis
When does replication occur during meiosis?
Interphase
Which does not occur during meiosis?
two diploid daughter cells occur
During which phase of meiosis does crossover occur?
prophase I
When do homologus chromosomes occur short answer please thankss?
Homologous chromosomes occur during meiosis. Meiosis reduces the chromosome number by half.
During meiosis how many replications occur?
DNA replicates once during meiosis. This is why the end result is four haploid cells.
During which process does crossing-over occur?
crossing over occurs in meiosis I, specifically during prophase
What events occur in telophase?
Telophase occur in both mitosis and meiosis. During telophase nuclear membrane and nuclei reforms and in meiosis it further goes for meiosis 2 which is same as mitosis
