MCQ on Plant Biotechnology for various Agriculture Exams

1. ……% ethanol used for sterilization of explants
   (a) 10
   (b) 20
   (c) 50
   (d) 70

2. …… Nutrients required concentration is known as macronutrients.
   (a) > 0.5 mmol/l
   (b) > 0.005 mmol/l
   (c) < 0.5 mmol/l
   (d) < 0.005 mmol/l

3. …… Nutrients required concentration is known as micronutrients.
   (a) > 0.5 mmol/l
   (b) > 0.005 mmol/l
   (c) < 0.5 mmol/l
   (d) < 0.005 mmol/l

4. Polarity of somatic embryo is
   (a) Multipolar
   (b) Monopolar
   (c) Bipolar
   (d) All of these

5. Embryo rescue technique helps to overcome
   (a) Post-fertilization barrier
   (b) Vitrification
   (c) Browning problem
   (d) Pre-fertilization barrier

6. The formation of embryos from callus is known as
   (a) Parthenogenetic
   (b) Indirect embryogenesis
   (c) Direct embryogenesis
   (d) None of these

7. Seed propagation of sterile plant is possible through
   (a) Pollen culture
   (b) Ovary culture
   (c) In vitro fertilization
   (d) Synthetic seed

8. High sucrose level acts as in pollen culture medium
   (a) Osmolytic
   (b) Osmoregulator
   (c) Plasmolytic
   (d) Hyper hydration/vitrification

9. Hyper hydration/vitrification problem is associated with
   (a) Micropropagation
   (b) Pollen culture
   (c) Embryo culture
   (d) Ovule culture

10. The development of somatic embryo from other than meristematic cell is described as
    (a) Gametophytic embryo
    (b) Adventive embryo
    (c) Parthenogenetic embryo
    (d) None of these