HEREDITY
MUTATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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involves two nonhomologous chromosomes, part of one breaks off and is transferred to the other.
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occurs when a piece of chromosome is lost or removed.
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is when a chromosome breaks off, then the segment flips and reattaches.
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occurs when a gene sequence is repeated.
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Detailed explanation-1: -In a translocation, a segment from one chromosome is transferred to a nonhomologous chromosome or to a new site on the same chromosome. Translocations place genes in new linkage relationships and generate chromosomes without normal pairing partners.
Detailed explanation-2: -Reciprocal translocation is a chromosome abnormality caused by exchange of parts between non-homologous chromosomes. Two detached fragments of two different chromosomes are switched.
Detailed explanation-3: -A translocation, as related to genetics, occurs when a chromosome breaks and the (typically two) fragmented pieces re-attach to different chromosomes. The detection of chromosomal translocations can be important for the diagnosis of certain genetic diseases and disorders.
Detailed explanation-4: -Reciprocal translocations are a transfer of genetic material between homologous chromosomes. These are most commonly balanced exchanges, such that no genetic material is lost and individuals are phenotypically normal.