Ratio of additive variance to phenotypic variance is called___________________?

Related Mcqs:

1. Ratio of genotypic covariance to the phenotypic covariance is____________________?

   A. Heritability (b.s)
   B. Genetic gain
   C. Co-heritability
   D. Genetic advance

2. In a monohybrid cross, 2 heterozygous individuals were crossed, phenotypic ratio came to be (2:1), it is due to__________________?

   A. Dominant lethal genes in heterozygous individuals
   B. Dominant lethal genes in homozygous individuals
   C. Dominant epistasis
   D. None of the above

3. When a wheat variety with red kernels (homozygous for two non allelic and independent dominant genes) is crossed with white kenneled wheat (homozygous for two recessive non allelic independent genes), the phenotypic ratio in the F2 generation would be________________?

   A. 9:3:3:1
   B. 9:7
   C. 9:9:9:3:3:3:1
   D. 1:4:6:4:1

4. The ratio of treatment variance to error variance is known as______________________?

   A. Correction factor
   B. F-value
   C. Critical difference
   D. t-value

5. Difference between mean phenotypic value of the progeny of selected plants and the parental population is known as__________________?

   A. Genetic gain
   B. Genetic advance
   C. Heritability
   D. Coheritability

6. Who coined the term genetic flexibility and phenotypic flexibility___________________?

   A. Hardy (1908)
   B. Thoday (1953)
   C. Salisbury (1940)
   D. Muller (1950)

7. In the F2 generation, genotypic and phenotypic ratios are identical in cases of___________________?

   A. Mendel lan monohybrids
   B. Mendelian dihybrids
   C. Incomplete dominance
   D. None of the above

8. In populations genotypic and phenotypic ratios are identical in cases of___________________?

   A. Mendel lan monohybrid
   B. Mendelian dihybrid
   C. Incomplete dominance
   D. None of the above

9. The smallest unit of recombination in the chromosome is called___________________?

   A. Gene
   B. Chromosome
   C. Citron
   D. Recon

10. Maturation of stamens and pistils at different times in the same flower is called___________________?

    A. Heterostyle
    B. Dichotamy
    C. Heterospory
    D. Dichogamy