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Zarrin [17]
3 years ago
10

What is compression?

Biology
2 answers:
zmey [24]3 years ago
8 0
The action of compressing or being compressed.
the reduction in volume (causing an increase in pressure) of the fuel mixture in an internal combustion engine before ignition.
liq [111]3 years ago
4 0
Compression is the increasing physical pressure on a (vital) <span>structure.</span>
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You are involved in an experiment involving fluorescent painting of chromosomes. You observe the following in a nucleus experien
Galina-37 [17]

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It seems that a reciprocal translocation is going on.

Explanation:

A translocation occurs when a chromosomal fragment changes its location in the same chromosome from the original to a new one. Or when it leaves the chromosome to re-locate in a new different chromosome.

According to this, there are different types of translocations:

  • Intrachromosomal translocations:
  1. Intra-radial: the change in position occurs in the same arm of the chromosome. For instance, 123.456789 → 123.478569
  2. Extra-radial: The change in position occurs from one arm to the other of the same chromosome. For instance, 123.456789 → 15623.4789
  • Extrachromosomal translocations:
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  2. Reciprocal translocation: There is a reciprocal interchange. A fragment of chromosome A goes to B, and a fragment of chromosome B goes to A.

Reciprocal translocations might be:

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  2. External: the interchange occurs among non-homologous chromosomes

Reciprocal translocations are easily recognized during meiosis because an association between four chromosomes can be observed.  This association is a quadrivalent structure.

During metaphase 1, the centromeres involved in the quadrivalent originate centromeric co-orientation or disjunction.

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