The pedigree below is in reference to Angelman Syndrome (AS), which is caused by a mutation in the UBE3A gene on chromosome 15. The gene is also paternally imprinted. Individuals […]
Tag: CSIR NET Life Science Previous Year Questions and Solution Genetics
Tag: CSIR NET Life Science Previous Year Questions and Solution Genetics
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Prader-Willi Syndrome Chromosome 15: Maternal Uniparental Disomy
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- December 6, 2025
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35. Which one of the following conditions associated with chromosome 15 may cause Prader-Willi syndrome? (1) Paternal uniparental disomy (2) Maternal uniparental disomy (3) Imprinting of 15q11-q13 locus in maternal […]
Genetic Causes and Differences Between Angelman Syndrome and Prader-Willi Syndrome
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- December 6, 2025
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34. Angelman syndrome (AS) and Prader-Willi Syndrome (PWS) have very distinct symptoms. Factors responsible for the occurrence of these syndromes are given below: A. Microdeletion of 15q 11-13 in paternal […]
Gene Location on 10p11: Chromosome Banding Notation
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- December 6, 2025
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33. A gene was located on 10p11. This means the gene was located on the (1) short arm of chromosome 10 at G-sub band 1 of band 1 (2) short […]
R-Banding Chromosomes: False Statements and Mechanism
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- December 6, 2025
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32. Which of the following statements about R-banding chromosomes is FALSE? (1) The heat treatment preferentially denature the GC rich DNA to produce R-banding pattern. (2) This is essentially the […]
Giemsa Staining Dark Bands
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- December 6, 2025
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31. Eukaryotic genomes are organized into chromosomes and can be visualized at mitosis by staining with specific dyes. Heat denaturation followed by staining with Giemsa produced alternate dark and light […]
Best Technique to Separate Two Loci on Chromosomes: G-Banding Explained
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- December 6, 2025
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30. Which is best technique to separate the two loci on chromosome? (1) C- banding (2) Gel electrophoresis (3) G-banding (4) Chromatography The best technique to separate or differentiate two […]
Genetic Counselor Predict Second Child Risk After First Child Developmental Defects
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- December 6, 2025
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29, First child of parents shows developmental defects want to take help from genetic counselor for their second child. The genetic counselor must know to predict the fate of second […]
What Is an Isochromosome?
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- December 6, 2025
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28. If both arms of one chromosome have same genotype and structure, such chromosome is referred as (1) Isochromosome (2) Allochromosome (3) Duplicate chromosome (4) Homologous Chromosome The chromosome in […]
Calculating Risk of Autosomal Recessive Trait in III‑1
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- December 6, 2025
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27. In the following pedigree, individual with shaded circle or shaded square show presence of a recessive autosomal trait. The calculated risk of occurrence of this trait for iii-1 is […]


