8. The structural change which leads into crossover suppression and position effect is (1) Deletion (2) Duplication (3) Inversion (4) Translocation Concept: why inversions fit both features A chromosomal inversion occurs when […]
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CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Outcome of crossing over in a pericentric inversion heterozygote
7. What is outcome after single crossover between chromosomes having pericentric inversion and normal? (1) Segmental Deletion and Duplication (2) Bridge formation (3) Ring formation (4) Acentric and dicentric chromosomes […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Why some chromosomal inversions only survive as heterozygotes
6. Chromosomal inversions are balanced rearrangements and thus do not change the overall amount of genetic material. While inversions can exist in homozygous condition, some only exist as heterozygotes. In […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Identifying chromosomal aberration pattern
4. Suppose a chromosomal aberration in a chromosome AB.CDEFG leads to AB.CDEFCDFEG. The probable reason is (1) Duplication and followed by EF inversion (2) Duplication followed by pericentric inversion (3) […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Chromosome aberration showing lack of crossing over, pseudo‑dominance and irreversibility
3. Chromosome aberration characterized by lack of crossing over, pseudo-dominance and non-reversal of mutation occurs in- (1) Inversion (2) Deletion (3) Translocation (4) Duplication […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Identifying a C‑banded human karyotype showing Klinefelter syndrome
2. Based on the image given below, select the option that describes it correctly: (1) Q-banded normal human karyotype. (2) G-banded human karyotype depicting aneuploidy. (3) C-banded karyotype depicting Klinefelter […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Matching reagents and events with human lymphocyte culture and chromosome banding methods
Column X and Y of the following table list some treatment methods, reagents, and events that are related to human lymphocyte culture, and banding/ karyotyping of human chromosomes. Which one […]
CSIR NET Life Science Previous Year Questions and Solution Biosensors
Choosing the best glucose detection method based on biosensor response curves
Glucose in the blood is detected by four different methods (a, b, c and d). The sensitivity and range of detection of glucose by these four methods is shown below. […]
CSIR NET Life Science Previous Year Questions and Solution Biosensors
Choosing the best biosensor response curve for physiological analyte range
Performance of biosensor is evaluated by their response to the presence of an analyte. The physiological relevant concentration of analyte is between 10µM and 50µM. Which among the following biosensor […]
CSIR NET Life Science Previous Year Questions and Solution Biosensors
How routine glucose biosensors actually measure blood glucose
Routinely used glucose biosensor estimates blood glucose level by sensing the concentration of (1) glucose. (2) oxygen. (3) δ-gluconolactone. (4) H2O2. […]
