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

Related Mcqs:

1. After self pollination of red flowered plants out of 40 plants of progeny were white flowered. this indicates that the plants are__________________?

   A. Heterogeneous
   B. Heterozygous
   C. Homogenous
   D. Homozygous

2. When an albino plant of maize (female) is crossed with normal green plant (male) all plants in the progeny are albino because___________________?

   A. Albinism is dominant over green characters
   B. Green plastids of male parent become nitrated
   C. Plastids are inherited through maternal parents
   D. Crossing over results in structural changes in green plastids

3. Breeder seed is the progeny of__________________?

   A. Cenified seed
   B. Nucleus seed
   C. Foundation
   D. Registered seed

4. Ratio of additive variance to phenotypic variance is called___________________?

   A. Heritability (broad sense)
   B. Heritability (narrow sense)
   C. Co-heritability
   D. Genetic gain

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

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

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

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

7. 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

8. 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

9. 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

10. 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