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Explain how nondisjunction results in cells with abnormal numbers of chromosomes?
Javier Zamora
Nondisjunction results in cells with abnormal numbers of chromosomes due to chromosomes not separating properly in meiosis. this causes some cells to end up with to many chromosomes and others to end up with not enough chromosomes. It messes up cell division and development and can lead to death or genetic disorders like Down syndrome.
Javier Zamora
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What occurs during nondisjunction?
If nondisjunction occurs, abnormal numbers of chromosomes may find their way into gametes, and a disorder of chromosome numbers may result.
Can nondisjunction affect autosomes and sex chromosomes?
Yes, Non-disjunction occurs when sex chromosomes fail to separate. This occurrence leads to variable numbers of chromosomes and the manifestation of developmental diseases such as Down syndrome, Turner syndrome, etc.
How can karyotypes detect non disjunction?
Karyotypes can detect non disjunction by showing abnormal chromosome numbers. Non disjunction occurs when chromosomes fail to separate properly during cell division, leading to an imbalance of chromosomes in the resulting cells. Karyotypes can be analyzed to identify any extra or missing chromosomes, indicating the occurrence of non disjunction.
What is the cause of holoprosencephaly?
Holoprosencephaly has no single cause, but about half of all cases are associated with abnormal karyotype (abnormal numbers of chromosomes), especially trisomy 13 (extra copy of chromosome 13) and trisomy 15 (extra copy of chromosome 15).
What are the advantages of having large numbers of chromosomes?
Larger numbers of chromosomes mean that the structure has more features. With more chromosomes, the structure is more complex and more detailed.
What is the number of chromosomes in a gemete?
Depends on what species is in questions - different species have different numbers of chromosomes in gametes.
Do mammals have an even or odd numbers of chromosomes?
Since humans have 26 chromosomes and are mammals that the chomosones will be even.
Are organisms with identical numbers of chromosomes identical?
No they are not identical
What is considered to be a abnormal reading for a cea test if 0-2.5 is normal what numbers are considered abnormal?
Hey! You are Abnormal! So you should Know the answer in your question!!!Hoe!By: Xhorxhia Papa
How do you half numbers?
How do you have numbers what. Can you explain better
How many numbers are in chromosomes?
46 in humans, which is the same as 23 pairs
How do differing numbers of chromosomes evolve without deleterious effects to individuals so that for instance Chimpanzees have 48 chromosomes yet humans have 46?
Chromosomal fusions and chromosomal duplication may lead to decreased or increased numbers of chromosomes with minimal loss of genes.
