Q1.The entire collections of plants/seeds having all diverse alleles for all the genes of a crop is called
Answer : Option BExplaination / Solution:
The entire collections of plants, seeds, plant parts having all diverse alleles for all the genes of a crop is called germplasm collections. Different parts of plants are kept at different temperature.
Q2.The capacity to generate a whole plant from any cell or ex-plant is called
Answer : Option CExplaination / Solution:
The capacity to generate a whole plant form any cell or ex-plant is called totipotency. Plants are totipotent and from small part of plant new whole plant can be grown.
Q3.The dividing and undifferentiated cells are known as
Answer : Option CExplaination / Solution:
The differentiated mass of cells is called callus. During tissue culture, callus is formed when small part of plant is kept in nutrient medium. Callus cells divide rapidly.
Answer : Option BExplaination / Solution:
Polyploidy is a condition in which multiple sets of chromosome is present in same cell in place of usual two sets (diploid). Bread wheat is generally hexaploid.
Q5.Which one of the following pair is incorrectly matched in respect to the "crop varieties for disease resistance"?
Answer : Option DExplaination / Solution:
Wheat plants are generally not infected by leaf and stripe rust. Common disease of wheat includes rust and smut disease. Wheat plants are not develop resistance for leaf and stripe rust.
Answer : Option DExplaination / Solution:
National Seed Corporation is responsible for maintaining purity of seeds of crop plants. This organization checks the purity of gene from pathogens as well as harmful effect of the contents present in it.
Answer : Option DExplaination / Solution:
If a person get food that do not contain all micronutrient, protein and vitamins in required amount as per age, sex, working condition, this condition is called hidden hunger.
Answer : Option CExplaination / Solution:
Gene banks are part of ex situ conservation of plants or plant parts. In ex situ conservation, plants parts are maintained in laboratory condition. In in situ conservation, plants are kept in natural condition with protection.
Answer : Option AExplaination / Solution:
Cultivated plants are mostly allopolyploids that contain multiple sets of genetic material in their cells. Bread wheat is generally hexaploid. Allopolyploids occurs due to faulty karyokinesis.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0