AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What situation causes a translocation?
A
Part of the chromosome is missing
B
Part of the chromosome is attached backwards
C
Part of the chromosome breaks off and attaches to a different chromosome
D
Part of a chromosome is duplicated
Explanation: 

Detailed explanation-1: -A translocation occurs when a piece of one chromosome breaks off and attaches to another chromosome. This type of rearrangement is described as balanced if no genetic material is gained or lost in the cell. If there is a gain or loss of genetic material, the translocation is described as unbalanced . Deletions.

Detailed explanation-2: -Translocations arise when an end of one chromosome break is mistakenly joined to an end from a different chromosome break. Since translocations can lead to developmental disease and cancer, it is important to understand the mechanisms leading these chromosome rearrangements.

Detailed explanation-3: -A genetic change in which a piece of one chromosome breaks off and attaches to another chromosome. Sometimes pieces from two different chromosomes will trade places with each other. Translocations may lead to medical problems such as leukemia, breast cancer, schizophrenia, muscular dystrophy, and Down syndrome.

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