MCQ on Biometrical Genetics / Quantitative Genetics Part -18 For ARS NET / SRF Exams

 

1. **If two variables deviate in same direction and same proportion then correlation is said to be**

   (i) Perfect positive correlation

   (ii) Negative correlation

   (iii) Positive correlation

   (iv) Perfect negative correlation

2. **If two variables deviate in opposite direction and same proportion the correlation is said to be**

   (i) Perfect positive correlation

   (ii) Negative correlation

   (iii) Positive correlation

   (iv) Perfect negative correlation

3. **Association between any two variables is called as**

   (i) Multiple correlation

   (ii) Simple correlation

   (iii) Partial correlation

   (iv) Net correlation

4. **Simple correlation is also called as**

   (i) First order correlation

   (ii) Net correlation

   (iii) Zero order correlation

   (iv) Second order correlation

5. **Simple correlation is estimated from**

   (i) Replicated data only

   (ii) Unreplicated data only

   (iii) Both (i) and (ii)

   (iv) None of these

6. **Simple correlation is estimated from**

    (i) Variance only

    (ii) Covariance only

    (iii) Both (i) and (ii)

    (iv) None of these

7. **Choose the correct statement regarding simple correlation**

    (i) It is denoted as ‘r₁₂’ (1 and 2 depicts the pair of character)

    (ii) Its value is always lower than multiple correlations

    (iii) It deals with both zero order correlation and first order correlation

    (iv) Both (i) and (ii)

8. **The value of simple correlation lies between**

    (i) 0 to 1

    (ii) 0 to -1

    (iii) -1 to 1

    (iv) None of theses