31. A female with 47 chromosomes have normal phenotype. Her chromosome complements will be- (1) 44 + XXY (2) 44 + XXX (3) 45 + xx (4) 44+ XYY Concept […]
Tag: CSIR NET Life Science Previous Year Questions and Solution Genetics
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CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Key features of Robertsonian translocations and how they are detected
30 Whith of the following statements are true Robertsonian translocations? A. The size of the non-homologous chromosome involved in translocation will differ. B. Genes on the chromosome involved in translocation […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Which chromosomal condition shows one unpaired chromosome during meiosis?
29. During meiosis if one of the chromosome lack its homologous partner while all other chromosome are paired, such aberration is termed as (1) Haploidy (2) Monosomic (3) Trisomy (4) […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Meiotic consequences of a reciprocal translocation heterozygote (alternate vs other segregations)
28. An individual is heterozygous for a reciprocal translocation as shown below in the given diagram: The following statements are made about segregation of such chromosomes during meiosis and gamete […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Segregation patterns in a reciprocal translocation heterozygote quadrivalent
The following statements were made regarding chromosome pairing (shown in the figure below) and subsequent segregation during meiosis-I in the reciprocal translocation heterozygote: A. Three ways of segregation tn Anaphase […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Meiotic outcome of a reciprocal translocation heterozygote
26. A reciprocal translocation heterozygote at the end of meiosis I generate (1) An acentric and a dicentric chromosome (2) Viable gametes with deletions and duplications (3) Viable gametes with […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Why can a normal man have 45 chromosomes (44 + X)?
25. A normal man was found to have 45 chromosomes (44+X), the probable reason is- (1) Deletion (2) Translocation (3) Ecentric Fission (4) […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Why rare XX males and XY females arise in humans
24. In humans, XX males and XY females are rare, such rare sexes are due to (1) Deletion of X chromosome (2) Deletion of Y chromosome (3) XY translocation (4) […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Alternate segregation in a translocation heterozygote
23. If both translocated arms in single translocation heterozygote moves to one pole, then segregation is called (1) Alternate (2) Adjacent (3) Linear (4) Uniform Explanation of options: (1) Alternate […]
CSIR NET Life Science Previous Year Questions and Solution on CHROMOSOMES ABERRATIONS
Meiotic consequences of reciprocal translocation in Burkitt’s lymphoma (t(8;14))
22. In Burkitt’sLymphoma a reciprocal translocation between chromosome 8 and 14 is observed. If an individual is heterozygous for this translocation, the consequence in meiosis Will be as follows: A. […]
