A. DDT
B. X-rays
C. Gibberrellic acid
D. Auxins
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Related Mcqs:
- 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...
 
 - Linkage of hereditary units was discounted by__________________?
- A. W. Batson and B.C Pun net B. T.B. Morgan and G. Mendel C. W.S. Sutton and K. R. Porter D. C.B. Bridges and G.H. Shull...
 
 - The branch of science which deals with hereditary variation is called___________________?
- A. Genetics B. Embryology C. Biology D. Histology...
 
 - Organism arise from existing forms by genetic variations is called_________________?
- A. Mutation B. Genetics C. Genetics D. Hybridization...
 
 - Organic evolution through large discontinuous variations was propound by__________________?
- A. Mendel B. Darwin C. Huge and Vnes D. Lamak...
 
 - Haploid plants have been produced by another culture in tomato by_________________?
- A. Greshof and Doy (1972) B. Tyagi and Prasad (1965) C. Mehta and Upadhya (1960) D. Singh (1960)...
 
 - From a single ear of corn a farmer planted 300 kernels which produced 225 tall and 75 short plants. the genotype of these offsprings are most likely to be_____________________?
- A. TT and Tt only B. TT and tt only C. Tt and Tt only D. TT Tt and tt...
 
 - Previously Essential nutrients required for the growth of plants were sixteen. In recent time the essential nutrients required for the growth of plants are:_________?
- A. 16 B. 17 C. 18 D. None of the above Submitted by: Shafiq Rehman...
 
 - Drought is measured in terms of________________?
- A. Yield performance B. Photosynthesis C. Root length of seedings D. All the above...
 
 - Cataracts, a form of impaired vision in which the lens of eye become opaque in old age is caused due to the deficiency of________________?
- A. Ascorbic acid B. Tannins C. Folic acid D. None of the above...
 
 
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