61. The RFLP pattern observed for two pure parental lines (P1 and P2) and their F1 progeny is represented below. Further, the P1 plant had red flowers while the P2 […]
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CSIR NET Life Science Previous Year Questions and Solution on EXTENSION OF MENDELIAN PRINCIPLES (62)
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Seed Size Gene and 5 kb DNA Marker
A pair of alleles govern seed size in a crop plant. ‘B’ allele responsible for bold seed is dominant over ‘b’ allele controlling small seed. An experiment was carried out […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Early vs Late Ripening in Plants
59. A new mutant called early ripening (EL) is identified in a plant. The wild type phenotype is late ripening (LR). Further DNA marker(s) is/are observed to be polymorphic between […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Test Cross Mapping with Dominant Markers
58. Two homozygous individuals (Pl and P2), were genotyped using dominant DNA markers A and B, as shown below. The F1 progeny obtained was test crossed and frequency of progeny […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Genetic Markers in Introgression Breeding
57. In recent decades.the use of genetic markers has allowed the rapid introgression and selection of desired breeding stocks in advance generations. In this regard, following statements are given: A. […]
CSIR NET Life Science Previous Year Questions and Solution on GENE MAPPING METHODS
Molecular Markers in Plant Breeding
56. The following are statements above molecular markers in the context of plant breeding A. Molecular markers can be used for elimination of undesirable traits B. Molecular markers cannot be […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Understanding Qualitative and Quantitative Disease Resistance in Plants
A disease-resistant plant was crossed With a susceptible plant and the resultant F1 plants were disease resistant. The F1 plant was seifed and the F2 individuals were analyzed for qualitative […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
How to Calculate Broad-Sense Heritability in F2 Population Using Variance in Beans
16. Two inbred lines of beans were intercrossed. In F1 the variance in bean length was measured as 2.0. The F1 was selfed to obtain F2 and the variance in […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Predicting Rabbit Body Weight from Additive Gene Action at Two Loci
15. Body weight of rabbits is determined by pairs of alleles at two loci, ‘a’ and ‘b’ that are additive and equal in their effects. Rabbits with genotype a– a– […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Predicting Progeny Cob Length by Additive Gene Action in Corn
14. Two pure line of corn have mean cob length of 9 cm and 3 cm, respectively. The polygenes involved in this trait exhibit additive gene action. Crossing these two […]
