Pure line theory was developed by_______________?

Related Mcqs:

1. If a pure tall plant is crossed with a pure dwarf one, the ratio of tall pure dwarf in the F 2 generation after selling F1 plant will be___________________?

   A. 1:1 B. 1:2 C. 2:1 D. 3:1...

2. The concept of multi line varieties was developed by_________________?

   A. Falconer (1960) B. Goulden (1939) C. Jensen (1952) D. Johannsen (1903)...

3. Pure water has an water activity (Aw) of___________________?

   A. 0.99 B. 1.00 C. 1.5 D. non of these...

4. What is the concentration of pure water?

   A. 55.5 mol/L B. 45.5 mol/L C. Both a and b D. none of these Submitted by: Shafiq Rehman...

5. Concept of biparental mating was developed by__________________?

   A. Perkins (1968) B. Jinks and Jones (1958) C. Hayman (1958) D. Comstock and Robinson (1948)...

6. Concept of triple test cross of analysis was developed by____________________?

   A. Kearsey and Jinks (1960) B. Mather (1949) C. Anderson (1957) D. Fisher (1960)...

7. Heat, cold and frost resistance ideotype have been developed in_____________________?

   A. Cereals B. Pulses C. Millet D. None of the above...

8. Concept of gene for gene hypothesis was developed in____________________?

   A. Linseed B. Oat C. Gram D. Tomato...

9. Many groups of insects have developed resistance to DDT and other insecticides as a result of____________________?

   A. Crossing over B. Polyploidy C. Segregation D. Gene mutation...

10. In allogamous species, a true breeding line obtained by continuous inbreeding is__________________?

    A. Hybrid B. Top cross C. Poly cross D. Inbred...