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 |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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 |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

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%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement