MCQ on Biometrical Genetics / Quantitative Genetics Part -13 For ARS NET / SRF Exams

 

1. The observable variation present in a character in a population is called as

   (i) Total variation

   (ii) Phenotypic variation

   (iii) Both (i) and (ii)

   (iv) Genotypic variation

2. Genotype difference among individuals within population is called as

   (i) Total variation

   (ii) Phenotypic variation

   (iii) Environmental variation

   (iv) Genotypic variation

3. Non heritable variation is called as

   (i) Total variation

   (ii) Phenotypic variation

   (iii) Environmental variation

   (iv) Genotypic variation

4. Hayman and Mather classified epistatic variance into

   (i) A×A interaction, D×D interaction and A×D interaction

   (ii) Additive variance and non additive variance

   (iii) Heritable fixable, heritable non fixable and non heritable non fixable variance

   (iv) Additive variance, dominance variance and epistatic variance

**5. Classification of genetic variance into additive variance and non additive variance was given by**

(i) Fisher

(ii) Hayman and Mather

(iii) Wright

(iv) Mather

**6. Classification of phenotypic variance into heritable fixable, heritable non fixable and non heritable non fixable was given by**

(i) Fisher

(ii) Hayman and Mather

(iii) Wright

(iv) Mather

**7. Choose the correct statement**

(i) Fisher classified genetic variance into additive variance, dominance variance and epistatic variance

(ii) Hayman and Wright classified epistatic variance into A×A interaction, D×D interaction and A×D interaction

(iii) Mather classified genetic variance into additive variance and non additive variance

(iv) Wright classified phenotypic variance into heritable fixable, heritable non fixable and non heritable non fixable

**8. Choose the correct one**

(i) σ²P = σ²G + σ²E

(ii) σ²G = σ²A, σ²D and σ²I

(iii) σ²I = σ²AA, σ²AD and σ²DD

(iv) All of these

**9. Variability can be assessed by**

(i) Using simple measures of variability

(ii) By studying genetic diversity

(iii) By estimating various components of variance

(iv) All of these

**10. Simple measures of variability includes**

(i) Range and arithmetic mean

(ii) Standard deviation and standard error

(iii) Coefficient of variation and variance

(iv) All of these