AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Translocation mutations are when ____
A
A single N-base is changed.
B
A single N-base is added.
C
Part of a chromosomes is flipped/backwards.
D
Part of a chromosome break off and attaches to a new location.
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -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 .

Detailed explanation-3: -Translocations, in genetics, happen when chromosomes break and the pieces attach to other chromosomes.

Detailed explanation-4: -Duplication Duplication, as related to genomics, refers to a type of mutation in which one or more copies of a DNA segment (which can be as small as a few bases or as large as a major chromosomal region) is produced. Duplications occur in all organisms.

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