6. During an experiment, an Investigator found that the cell line used are RecA -/-. What could be the probable finding which led him to such observation? (1) Low of […]
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 Genetics
Holliday Junction Resolution in Double Strand Break Model
5. A Holliday junction js a branched nucleic acid structure that contains four double stranded arms joined together. After strand invasion and branch migration the function must then be resolved […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
D-Loop Expansion and Ejection Mechanisms in Meiotic Recombination
4. To obtain recombinant products during meiosis, a double-strand break in the DNA yields crossovers needed for chiasmata formation. The progression of the non-crossover and crossover pathways begins with the […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
DNA Recombination Proteins Rad51, Spo11, Rad52/Rad59 and MRX Complex
3.Column X lists proteins that play a role in mediating DNA recombination processes and Column Y lists the possible functions of these proteins. Column X Proteins Column Y Functions A. […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Neurospora Crassa Tetrad Analysis 6:2 Ratio Gene Conversion
2. In Neurospora crasa tetrad analysis showed following result + : m :: 6 : 2. The phenomenon involved for above result would be (1) Branch migration (2) Gene conversion […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Holiday Junction Is Observed During Which Process?
1. Holiday junction is observed during: (1) Mitosis (2) Interphase (3) Recombination (4) DNA damage The correct answer is: (3) Recombination. Holliday junction is a characteristic intermediate of homologous genetic recombination, especially during […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Pre-mutations and Inheritance in Fragile X Syndrome
37. In which one of the following human disorders, parents or grandparents are said to carry pre-mutations? (1) Down syndrome (2) Fragile X syndrome (3) Klinefelter syndrome (4) Alkaptonuria The […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Somatic Recombination in Drosophila
36. Somatic recombination was caused by mild exposure to radiation on flies heterozygous for a given allele during specific stages of development and the individuals were allowed to develop. Such […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Auxotrophic E. coli Strains Recombination vs Mutation Control Experiment
Two auxotrophic strains of E. coli: A (met– bio– thr+ leu+ thi+) and B (met+ bio+ thr– leu– thi–) were incubated together for 18 hours in liquid medium and then […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Determining Order of Compounds from Mutant Growth Data (A to E)
Several mutants (1-4) are isolated, all of which require compound E for growth. The compounds A to D in the biosynthetic pathway to E are known; but their order in […]
