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Cell division in which the sister chromatids do not separate correctly, resulting in gametes with an abnormal number of chromosomes.
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∙ 15y ago
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What is a chromosome called when it gets lost during mitosis?
" gets lost "I think you are describing a nondisjuction event where the chromosomes are not properly pulled apart to their proper positions by the mitotic spindle.
What is the Effects of nondisjunction?
Non-disjunction can result in a number of different conditions, including Down Syndrome, Klinefelter Syndrome, Turner's Syndrome, Super Males, Triple X syndrome or Edward's Syndrome.
Why does turner's syndrome occur?
Going down to the cellular level, it occurs in meiosis when chromosomes fail to separate (nondisjuction). We get a set of chromosomes from our paternal side and the other set from out maternal side. For example, one of the gamete that may have came from our maternal side contains no chromosomes , O, when it should contain that chromosome x while from our paternal side we get a gamete containing the x chromosomes. This results in a XO, a sterile female when the normal sex chromosomes are XX or XY. -or- nondisjunction
What are the six stages of mitosis?
h t t p ://library.thinkquest.org/C0118084/Gene/Chromosomal_Inheritance/StagesMitosis.htm ( Expired as of 2013) Interphase Prophase Metaphase Anaphase Telaphase Cytokinisis
How does disjunction occurs?
Nondisjuction occurs when the homologous chromosomes fail to separate.
How does non-disjunction occur?
Nondisjuction occurs when the homologous chromosomes fail to separate.
What caused anomaly when one daughter cells gets two copies of a chromosome?
The process by which a daughter cell accidentally get two copies of a chromosome is called "nondisjuction".
What is a chromosome called when it gets lost during mitosis?
" gets lost "I think you are describing a nondisjuction event where the chromosomes are not properly pulled apart to their proper positions by the mitotic spindle.
What is the Effects of nondisjunction?
Non-disjunction can result in a number of different conditions, including Down Syndrome, Klinefelter Syndrome, Turner's Syndrome, Super Males, Triple X syndrome or Edward's Syndrome.
What are some diseases non-disjunction causes?
No " following, but a condition such as trisomy 21, Downs syndrome, is caused by nondisjuction. The chromosomes fail to separate properly and one child is left with an extra chromosome number 21. The potetial other children that could have been born of this nondijuction event, those with only one chromosome 21, are not viable.
How can a genetic disorders as Turner syndrome occur?
Going down to the cellular level, it occurs in meiosis when chromosomes fail to separate (nondisjuction). We get a set of chromosomes from our paternal side and the other set from out maternal side. For example, one of the gamete that may have came from our maternal side contains no chromosomes , O, when it should contain that chromosome x while from our paternal side we get a gamete containing the x chromosomes. This results in a XO, a sterile female when the normal sex chromosomes are XX or XY. -or- nondisjunction
Why does turner's syndrome occur?
Going down to the cellular level, it occurs in meiosis when chromosomes fail to separate (nondisjuction). We get a set of chromosomes from our paternal side and the other set from out maternal side. For example, one of the gamete that may have came from our maternal side contains no chromosomes , O, when it should contain that chromosome x while from our paternal side we get a gamete containing the x chromosomes. This results in a XO, a sterile female when the normal sex chromosomes are XX or XY. -or- nondisjunction
How are nondisjunction and polyploidy related?
The difference between polyploidy and nondisjunction is that being polyploidy is a result of nondisjuction. When the metaphase II doesn't occur properly the homologous pairs will stay together. Leaving one cell with out that chromosome and with with an extra. Polyploidy has one too many chromosomes.
What are the six stages of mitosis?
h t t p ://library.thinkquest.org/C0118084/Gene/Chromosomal_Inheritance/StagesMitosis.htm ( Expired as of 2013) Interphase Prophase Metaphase Anaphase Telaphase Cytokinisis
