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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.
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If a child is born with down syndrome when did the mutation occur?
During meiosis
When does replication occur during meiosis?
Interphase
Occurs during prophase 1 of meiosis?
Crossing over between homologous chromosomes occurs during prophase 1 of meiosis. This process involves the exchange of genetic material between homologous chromosomes, leading to genetic diversity among the offspring.
Which does not occur during meiosis?
DNA replication does not occur during meiosis. Meiosis is a specialized cell division process that involves two rounds of division to produce gametes with half the number of chromosomes as the parent cell. DNA replication happens during the interphase preceding meiosis.
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.
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
If child is born with trisomy when did the mutation occur?
during meiosis
What major 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
When a child is born chromosomal mutation when did the mutation occur?
During meiosis
When a child is born with a chromosomal mutation when did mutation occur?
during meiosis
Is meiosis necessary before fertilization Can occur?
Yes, meiosis is necessary before fertilization can occur because meiosis is the process by which gametes (eggs and sperm) are formed. During meiosis, the cell's chromosome number is halved, so that when the egg and sperm fuse during fertilization, the resulting zygote will have the correct number of chromosomes.
