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Anuj Basnotra posted an Question
May 05, 2020 • 03:09 am
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30 points
30 points
- IIT JAM
- Biotechnology (BT)
Do genetic interaction occur among non homologous chromosone
do genetic interaction occur among non homologous chromosone
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Abhijeet Gaurav
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The physical interaction between nonhomologous chromosomes demonstrates that they are capable of interacting during meiotic prophase. Additional evidence for nonhomologous chromosomal interactions comes from the observation of ectopic recombination between homologous sequences located on different chromosomes and the formation of inter- and intrachromosomal SCs in haploid meiosis. The mechanism of the interaction between the nonhomologous chromosomes is unknown. It may be dependent on small regions of homology such as centromeres, telomeres, transposons, or other repetitive sequences that are shared between segregating chromosome. In prophase, non homologous pairing occurs at centromere. ZIP 1 protein is required for that. There are physical interactions. But there has not been research paper proving the genetic interaction between non- homologous chromosomes.
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sir,I had another query we know that homozygous and heterozygous condition is among homologous chromosomes. But, do heterozygous condition occur among non homologous chromosomes? can we say to non homologous chromosomes heterozygous?
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Abhijeet Gaurav![best-answer]()
It's doesn't seem likely so. Nothing has been published till now to support this fact. So I would no heterozygous in non homologous chromosomes.
thanks sir, this was confusing me.