- 1(current)
Q. No.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 |
80%
From NCERT
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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 |
86%
From NCERT
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A changed chromosome number such as 2n +1, 2n –1 and 2n + 2, 2n – 2 is called:
1. Aneuploidy
2. Polyploidy
3. Allopolyploidy
4. Monosomy
1. Aneuploidy
2. Polyploidy
3. Allopolyploidy
4. Monosomy
Subtopic: Non - Disjunction & Aneuploidy |
85%
From NCERT
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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 |
84%
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An autosomal primary non-disjunction event is the causal factor for:
1. Down’s syndrome
2. Klinefelter’s syndrome
3. Turner’s syndrome
4. Conn’s syndrome
1. Down’s syndrome
2. Klinefelter’s syndrome
3. Turner’s syndrome
4. Conn’s syndrome
Subtopic: Non - Disjunction & Aneuploidy |
81%
From NCERT
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- 1(current)
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