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. […]
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 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 […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
How to Estimate Number of Polygenes Affecting Maize Height from F2 Plant Data
13. Two varieties of maize averaging 48 and 72 inches in height, respectively, are crossed, The F1 progeny is quite uniform averaging 60 inches in height. Of the 500 F2 […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Polygenic inheritance of wheat kernel colour
Wheat plants can have kernels of white colour or in shades of red i.e. light red, red, dark red and very dark red (purple). A researcher made the following cross: […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Understanding Heritability Coefficient (h2) and Its Calculation in Genetics
11. The total variance in a phenotypic character can be split into two components – genetic (VG) and environmental (VE). The heritability of a phenotypic trait can be expressed quantitatively […]
CSIR NET Life Science Previous Year Questions and Solution on Genetics
Understanding Heritability of Quantitative Characters
10. Which one of the following statements is true regarding heritability of a quantitative character? (1) The estimate obtained from a given population and in one set of environment can […]
