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When there is a change in the chromosome number such that the changes number is not an exact multiple of base number [haploid number], the condition is called as:

1. Euploidy 2. Aneuploidy
3. Aberration 4. Non-disjunction

Subtopic:  Non - Disjunction & Aneuploidy |
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Failure of cytokinesis after telophase stage of cell division results in an increase in a whole set of chromosomes in an organism and this phenomenon is known as:

1. Aneuploidy 2. Translocation
3. Polyploidy 4. Inversion
Subtopic:  Non - Disjunction & Aneuploidy |
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Which of the following is not a feature of Down’s Syndrome?

1. It is caused by a non-disjunction in an autosome.
2. The affected individual has a trisomy of chromosome 21.
3. The affected individual has a characteristic simian palmar crease.
4. The mental development of the affected individual is normal.
Subtopic:  Non - Disjunction & Aneuploidy |
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