Chromosomal Mutations Test Questions with Answers
Inversion - Answer-Type of chromosomal mutation when part of one chromosome becomes turned around in reverse of the normal position
Translocation - Answer-Type of chromosomal mutation when part of one chromosome breaks off and attaches to anoth...
Inversion - Answer-Type of chromosomal mutation when part of one chromosome
becomes turned around in reverse of the normal position
Translocation - Answer-Type of chromosomal mutation when part of one chromosome
breaks off and attaches to another non-homologous chromosome
Non-disjunction - Answer-Type of chromosomal mutation when chromosomes fail to
separate properly during meiosis. This can result in an unusual number of
chromosomes.
Monosomy - Answer-Chromosomal abnormality consisting of the absence of one
chromosome from the normal diploid number
Trisomy - Answer-The presence of an additional (third) chromosome of one type in an
otherwise diploid cell, results in a condition called Down's syndrome
Triploidy - Answer-A zygote inherits 3 sets of chromosomes, rare in animals but
common in plants.
Down's Syndrome - Answer-A condition resulting when there are 3 copies of
chromosome #21
Turner's Syndrome - Answer-A condition affecting females who inherit only one X
chromosome. Females are sterile as a result.
Kleinfelters Syndrome - Answer-A condition affecting males who inherit an extra X
chromosome on chromosome #32. The genotypes can be XXY or XXXY or XXXXY.
Males are sterile as a result.
Chromosomal Mutation - Answer-Involves changes in entire chromosomes, either in
number or structure
Meiosis - Answer-The cell process where chromosomal mutations occur
Deletion - Answer-Type of chromosomal mutation, involves the loss of all or part of a
chromosome
Insertion - Answer-Type of chromosomal mutation, same as duplication- is when a
segment of a chromosome is repeated
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