MCQ on Biometrical Genetics / Quantitative Genetics Part -17 For ARS NET / SRF Exams

 

1. Choose the correct statement.**

(i) In D² statistics, variation within cluster is less than that between clusters

(ii) D² statistics helps in the selection of genetically divergent parents for their exploitation in hybridization programmes

(iii) When taking large number of genotypes in metroglyph analysis, overlapping of glyphs on the graph is obtained

(iv) All of these

2. Possible population distance in D² statistics is estimated as**

(i) *n(n - 1)*

(ii) *n(n + 1)/2*

(iii) *n - 1*

(iv) *n + 1*

3. Choose the correct statement**

(i) The index values in metroglyph analysis include mean ± SD

(ii) Statistics of group distance, based on multiple characters relates to D²

(iii) Pivotal condensation method used in D² statistics

(iv) All of these

4. Bartlett’s test is employed for**

(i) Homogeneity of E.M.S.

(ii) Homogeneity of genotype MS

(iii) Homogeneity of treatment M.S.E.

(iv) None of these

5. Bartlett’s test is based on**

(i) F test

(ii) t test

(iii) χ² test

(iv) Z test

6. Variance of F₂ and F₃ contributes to**

(i) Non heritable variance

(ii) Heritable variance

(iii) Both heritable and non-heritable variance

(iv) None of these

7. Term correlation coefficient was given by**

(i) R.A. Fisher (1918)

(ii) Wright (1921)

(iii) Dewey and Lu (1959)

(iv) Karl Pearson (1902)

8. Choose the correct statement**

(i) Correlation coefficient measures the intensity or degree of linear relationship between two or more variables

(ii) The mathematical or functional relationship between two or more variables is called as correlation coefficient

(iii) The statistic, which measures the degree and direction of association between two or more variables, is called as correlation coefficient

(iv) Both (i) and (iii)

9. If two variables deviate in same direction then the correlation is said to be**

(i) Negative correlation

(ii) Perfect-negative correlation

(iii) Positive correlation

(iv) Perfect-positive correlation

10. If two variables deviate in opposite direction then the correlation is said to be**

(i) Perfect-positive correlation

(ii) Negative correlation

(iii) Positive correlation

(iv) Perfect-negative correlation