Which type of chromosome rearrangement results in the fusion of the long arms of two nonhomologous chromosomes to produce a larger chromosome and a net reduction in chromosome number?

Question

Stella Wu

Biology

10 October, 11:59

Which type of chromosome rearrangement results in the fusion of the long arms of two nonhomologous chromosomes to produce a larger chromosome and a net reduction in chromosome number?

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Answers (1)

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Jazlynn Wiggins · Answer 1

Below are the choices that can be found from other sources:

Robertsonian translocation

Pericentric inversion

Unbalanced translocation

Reciprocal balanced translocation

The answer is Robertsonian translocation. Robertsonian translocation (ROB) is a rare form of chromosomal rearrangement that, in humans, occurs in the five acrocentric chromosome pairs, namely 13, 14, 15, 21 and 22. Other translocations occur but do not lead to a viable fetus.