AP BIOLOGY

HEREDITY

MUTATIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
produces an extra copy of all or part of a chromosome:chromosomal mutation
A
deletion
B
translocation
C
inversion
D
duplication
Explanation: 

Detailed explanation-1: -Duplications. Duplications occur when part of a chromosome is abnormally copied (duplicated). This type of chromosomal change results in extra copies of genetic material from the duplicated segment.

Detailed explanation-2: -Trisomy is a genetic condition that results in an extra copy of a chromosome. A person with trisomy will have 47 chromosomes instead of 46.

Detailed explanation-3: -In chromosomal duplications, extra copies of a chromosomal region are formed, resulting in different copy numbers of genes within that area of the chromosome.

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