quiz

Reproduction in Organisms (12th Board-Level)

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Some Rules of this Quiz
1. You will have only 15 seconds per each question.
2. Once you select your answer, it can't be undone.
3. You can't select any option once time goes off.
4. You can't exit from the Quiz while you're playing.
5. You'll get points on the basis of your correct answers.

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1. In majority of plants, fertilization is
   1.   External
   2.   Internal and oogamous
   3.   Isogamous
   4.   External and oogamous
2. Select the plants species which flower only once in their life time, generally after 50-100 years, produce large number of fruits and die.
   1.   Strobilanthus
   2.   Bamboo
   3.   Rice
   4.   Teak
3. Find the incorrect match.
   1.   Fertilisation : Syngamy
   2.   Zygote : Most vital link
   3.   Isogamete : Cladophora
   4.   Pollen sac : Megasporangium
4. Both Chara and Marchantia
   1.   Have motile male and female gametes
   2.   Are monoecious
   3.   Have multicellular sex organs
   4.   Are amphibians of the plants kingdom
5. Asexual reproduction
   1.   Is uniparental
   2.   Can involve gametes formation
   3.   Involves syngamy
   4.   Both (1) and (2)
6. In chara, male sex organ is called
   1.   Globule
   2.   Nucule
   3.   Oogonium
   4.   Male cone
7. Few algae show
   1.   External fertilisation
   2.   Heterogametes
   3.   Internal fertilisation
   4.   Zygotic mitosis to develop embryo
8. Select the incorrect match
   1.   Asexual reproduction : somatogenic reproduction
   2.   Sexual reproduction : Fusion of gamates
   3.   Vegetative propagation : Rhizomes
   4.   Clones : Morphologically similar genetically dissimilar
9. Select correct statement w.r.t. vegetative reproduction in Dahlia.
   1.   Adventitious buds present on root sprout to form new plants
   2.   Nodal buds of aerial stem form new plants
   3.   Underground stem buds grow into new plants
   4.   Bulbil present on floral axis grows into daughter plants
10. Find the correct match
    1.   Monoecious plants : Bisexual flower
    2.   Dioecious plants : Polygamous
    3.   Haploid parent : Mitogametes
    4.   Dissimilar gametes : Isogametes
11. Select the odd one out w.r.t sexual reproduction
    1.   Diverse organisms show great diversity in sexual mode of reproduction
    2.   Juvenile phase is called vegetative phase in plants
    3.   Offsprings are not identical to the parents
    4.   Fusion of gametes results in formation of zygote
12. Match the column 1st with coloum 2nd.
    
    Column 1st (Plants) Column 2nd (Vegetative reproduction by)
    
    a) Turmeric 1) Stolen
    b) Crocus 2) Rhizome
    c) Vallisneria 3) Aerial shoot
    d) Opuntia 4) Corm
    1.   a(1), b(4), c(3), d(2)
    2.   a(2), b(4), c(1), d(4)
    3.   a(4), b(2), c(3), d(1)
    4.   a(2), b(1), c(4), d(3)
13. In diploid organisms, specialised gametes mother cells produce gametes. They are called
    1.   Meiocytes
    2.   Mitocytes
    3.   Eggs
    4.   Pollen
14. Mark odd one w.r.t monocarpic plants.
    1.   Wheat
    2.   Bamboo
    3.   Henbane
    4.   Jackfruit
15. Select the correct match w.r.t vegetative propagules in angiosperms.
    1.   Rhizome : Water hyacinth
    2.   Offset : Brophyllum
    3.   Bulbil : Oxalis
    4.   Leaf buds : Ginger
16. Choose the incorrect statement.
    1.   Crow and parrot has different life spans
    2.   Mango has shorter life spans as compared to peepal
    3.   Life span is necessarily correlated with size of organisms
    4.   No individual is immortal except unicelled organisms
17. Select the plants having the shortest life span
    1.   Banyan
    2.   Peepal
    3.   Banana
    4.   Rose
18. Cell division is itself a mode of reproduction in
    1.   Protista and all fungi
    2.   Conodia
    3.   Sporangiopore
    4.   Gemmules
19. Select the odd one out w.r.t life-span
    1.   Life span of organisms are not correlated with their size
    2.   Crows and parrots show wide difference in their life-spans
    3.   Life span of rice is 3-4 weeks
    4.   It is the period between birth and natural death of an organism
20. The site of origin of the new plantlets in potato, sugarcane and banana are
    1.   Nodes
    2.   Internodes
    3.   Both nodes and internodes
    4.   Leaf margins
21. The vegetative propagules in aquatic plants like Valisneria and Eichhornia are
    1.   Stolen in both
    2.   Sucker and offset respectively
    3.   Stolen and offset respectively
    4.   Offset in both
22. If the chromosomes number in meiocyte of apple is 34, what will be the chromosomes no. in its gamete?
    1.   51
    2.   34
    3.   17
    4.   12
23. Most common special asexual reproductive structure sen in members of algae is
    1.   Zoospores
    2.   Conodia
    3.   Sporangiopore
    4.   Gemmules
24. Zygote is always _____and ______.
    1.   Single celled, haploid
    2.   Single celled, diploid
    3.   Multicelled, haploid
    4.   Multicelled, diploid
25. The vital link that ensures continuity of species between organisms of one generation and the next is
    1.   Zygote
    2.   Sperm
    3.   Pollen grain
    4.   Egg