1. What is the lowest unit of soil classification?
(1) Family
(2) Type
(3) Phase
(4) Series
(5) Order
Ans: (4)
2. Vermicast is also known as:
(1) Green gold (2) Brown gold
(3) Black gold (4) Red gold
(5) Agri gold
Ans: (3)
3. Which of the following is a complex fertilizer?
(1) Single superphosphate
(2) Ammonium sulphate nitrate
(3) Ammonium phosphate
(4) Calcium ammonium nitrate
(5) Calcium hemihydrate
Ans: (3)
4. Which process is responsible for accumulation of materials in B horizons?
(1) Eluviation (2) Illuviation
(3) Carbonation (4) Oxidation
(5) Cheluviation
Ans: (2)
5. Which of the following element is called as nanonutrient element?
(1) Zinc (2) Copper
(3) Iron (4) Molybdenum
(5) Phosphorus
Ans: (4)
6. Assessment of soil texture by feel method is done by:
(1) Ball formation (2) Ribbon formation (3) Staining
(4) Dryingpp (5) Lump formation
Ans: (1)
7. Mitochondria are self replicating organelles because they have:
(1) Thylakoids (2) Oxysomes
(3) Ribosomes (4) DNA
(5) Centorid
Ans: (1)
8. Which of the following is directly related to genetic engineering?
(1) Heterosis (2) Plasmid
(3) Mutation (4) Apomixes
(5) Crossing-over
Ans: (2)
9. The first recombinant DNA was produced by:
(1) Sanger (2) Pauling
(3) Paul Berg (4) Khorana
(5) Both (1) and (4)
Ans: (3)
10. Inheritance of a quantitative trait was firstly provided in Nicotiana longiflona by:
(1) Jule (1906)
(2) Nilsson-Ehle (1909)
(3) R.M, East (1916)
(4) Jinks & Mather (1948)
(5) Other than these options
Ans: (2)
