CBSE ADDA

Class 10 Biology MCQ  ((Multiple choice questions)  How do organisms reproduce?    1. Which of the following is a working copy (a) RNA (b) Protein (c) Fats (d) DNA 2. Which of the following is the blue print of body design & body function (a) RNA (b) Protein (c) DNA (d) Amino acid 3. Spore formation occurs in (a) Yeast (b) Hydra (c) Amoeba (d) Rhizopus 4. Which of the following can undergo regeneration (a) Flat worm (b) Round worm (c) Rhizopus (d) Amoeba 5. Rose is multiplied by (a) tissue culture (b) cutting (c) Layering (d) seeds 6. Pollen grains are produced by (a) ovary (b) anther (c) filament (d) stigma 7. The male sex organ of a flower is (a) stamen (b) sepal (c) petal (d) carpel 8. Which one of the following is a unisexual flower (a) china rose (b) cucumber (c) rose (d) jasmine 9. Male gametes are produced by (a)pollen grains (b) embryo sac (c) sigma (d) ovary 10. Receptive part of carpel is (a) ovary (b) Stigma (c) pl...

Reproduction: - Reproduction is the process of formation of new young individuals by the grown up individuals that look very much like them. It is one of the most important and fundamental properties of living organisms by which every kind of living organism multiples to form new individuals of its own kind. Thus, reproduction is meant for the continuation of the species. Reproduction, thus, creates new life and is essential for the perpetuation of species. It gives rise to new organisms with the same basic characteristics as their parents. It plays an important role in evolution by transmitting favorable variations from one generation to another. Significance of Reproduction:- 1.      Continuation of Life.  Reproduction is essential for continuation of life on earth. In its absence   life will be wiped out of earth within span of some years. 2.      Perpetuation of Species.  Reproduction carries the genetic c...