A. Ratio of phenotypes is 3:1
B. Ratio of genotypes is 3:1
C. Phenotypic ratio corresponds to the genotypic ratio
D. None of the above
Related Mcqs:
- Dominance hypothesis of heterosis was first proposed by__________________?
A. Davenport (1908)
B. Shull (1914)
C. Bruce (1910)
D. Davis (1927) - Shull and East (1908) proposed over dominance hypothesis of hetrosis in_________________?
A. Barley
B. wheat
C. Maize
D. None of the above - Blackeselee reported the first case of monoploid in__________________?
A. Datura
B. Rye
C. Brassica
D. Oat - According to a latest research, Pakistan is predominantly a dryland country; 80% of its land area is arid and semi arid, 12% sub-humid and 8% under humid climate. Thus , soils of arid & semi-arid regions are vulnerable to a wide range of degradation process. As the case in arid and semi-arid climates elsewhere in south-central/southern Asia and Sub-Saharan Africa; _________________ are among the major causes of soil degradation and desertification?
A. Drought stress
B. Accelerated erosion & salinization
C. Depletion of soil fertility and SOM
D. All of the aboveSubmitted by: Shafiq Rehman
- In rice, brown plant hopper has no preference for___________________?
A. Purple stigma
B. Low aspergine
C. Red pericarp
D. All the above - If diploid chromo me number in flowering plant is 8 then 4 chromosomes will be present in_________________?
A. Endosperm cell
B. Leaf cells
C. Cotyledonary cell
D. Synergids - 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 - The new crop critical has been evolved by intervener hybridization between________________________?
A. Wheat & rice
B. Rye & Wheat
C. Wheat & Anglos
D. Rice & maize - Top cross was first suggested by__________________?
A. Simmonds (1979)
B. East (1908)
C. Davenport (1908)
D. Davis (1927) - Who coin the term genetic load _____________?
A. Hardy (1908)
B. Muller (1950)
C. Ford (1940)
D. Satisbury (1940)