Reproduction in Organisms Class 12 MCQs Questions with Answers

1. Fertilisation cannot occur in absence of surface water in:

2. Planaria’s most remarkable characteristics are its ability to

3. Vegetative propagation in Pistia occurs by:

4. In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit?

5. Budding, in hydra, is a form ________

6. __________ shows totipotency

7. Identify the correct sequence of events:

8. In maize, a meiocyte has 20 chromosomes. What will be the number of chromosomes in its somatic cell?

9. Sugarcane is propagated by:

10. The wall of the ovary forms:

11. In animals, juvenile phase is followed by:

12. If a leaf cell of Agave has x chromosomes then what will be the number of chromosomes in a cell of its bulbil?

13. Offspring formed by sexual reproduction exhibit more variation than those formed by Asexual reproduction because:

14. When living tissue from a plant is extracted and placed in a medium, it is called _____

15. Viviparity is found in:

16. The development of root and shoot in tissue culture is determined by _____

17. Deposition of calcareous shell around zygote occurs in:

18. A diploid parent plant body produces ________ gametes and a haploid parent plant body produces ________ gametes.

19. There is no natural death in single celled organisms like Amoeba and bacteria because

20. Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because