Plasmids are discovered by___________________?

Related Mcqs:

1. Cytoplasmic genetic male sterility was first discovered by___________________?

   A. Jones and Davies (1944)
   B. Devaries and Correns (1900)
   C. Bruce and Keeble (1908)
   D. Nilson (1900)

2. The term poly genes was coined by___________________?

   A. Yates (1947)
   B. Hazel (1943)
   C. Mather (1943)
   D. Griffing (1956)

3. Law of parallele variation was given by___________________?

   A. Wilkins
   B. Jacob
   C. Vavilov
   D. None of the above

4. The term micro and macro environment was given by___________________?

   A. Robinson (1948)
   B. Lemer (1954)
   C. Perkins (1971)
   D. Comstock and Moll (1963)

5. Concept of combining ability as measure of gene action was first proposed by___________________?

   A. Sprague and Tatum (1942)
   B. Cavalli (1952)
   C. Mather (1956)
   D. Wright (1951)

6. Strands of DNA are bounded by___________________?

   A. Icygen
   B. Carbon
   C. Hybrogen
   D. Nitrogen

7. Heterosis can be fixed by___________________?

   A. Apomixis
   B. Polyploidy
   C. Asexual reproduction
   D. All the above

8. Male sterility in flowering plant was first reported by___________________?

   A. Stout (1917)
   B. Koelreuter (1763)
   C. Brewbaker (1810)
   D. Gerstel (1900)

9. Plants can be made disease resistant by___________________?

   A. Colchicines treatment
   B. Heat treatment
   C. Breeding with the wild variety
   D. Hormone spray

10. Theory of mutation was given by___________________?

    A. Mendel
    B. De Vries
    C. Tschermak
    D. Watson