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Reproduction in Organisms(Class - XII)

Reproduction in plants, animals, fungi, and other organisms including asexual and sexual reproduction methods

13 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following are microscopic motile asexual reproductive structures?

  1. Zoospores
  2. Conidia
  3. Buds
  4. Gemmules
Question 2 Multiple Choice (Single Answer)

Rotation of body during metamorphosis is at 90 degree in

  1. herdmania
  2. snails
  3. sea horse
  4. None of these
Question 3 Multiple Choice (Single Answer)

Which of the following statements is/are incorrect about fungal reproduction?

  1. Sporangium is a reproductive structure.
  2. Sporangium contains numerous hyphae.
  3. Spores are covered by thick walls.
  4. Spores germinate in the presence of moisture.
  5. All of the above
Question 4 Multiple Choice (Single Answer)

In bryophyllum, new plants arise from buds present on the margin of

  1. leaf
  2. stem
  3. root
  4. seed
  5. None of these
Question 5 Multiple Choice (Single Answer)

Which of the following statements is false?

  1. Bacteria and protozoa reproduce through fission.
  2. The filament of spirogyra divides into many pieces.
  3. In amoeba, splitting of cells can take place in any plane.
  4. Fission in Leishmania can occur in any plane.
  5. Binary fission occurs in a definite orientation in some organisms.
Question 6 Multiple Choice (Single Answer)

Which of the following organisms can reproduce new organisms by regeneration?

  1. Yeast
  2. Mushroom
  3. Planaria
  4. Plasmodium
  5. Amoeba
Question 7 Multiple Choice (Single Answer)

Match the following
P. Rhizopus 1. Egg
Q. Anther 2. Pollen grain
R. Ovule 3. Spore
  1. P - 3, Q - 2, R - 1
  2. P - 2, Q - 1, R - 3
  3. P - 1, Q - 2, R - 3
  4. P - 1, Q - 3, R - 2
  5. P - 2, Q - 3, R - 1
Question 8 Multiple Choice (Single Answer)

Which of the following is a unicellular animal having short thread-like structures called cilia over its surface?

  1. Leishmania
  2. Paramecium
  3. Hydra
  4. Amoeba
  5. Plasmodium
Question 9 Multiple Choice (Single Answer)

Vegetative reproduction is done by using tubers in

  1. potato
  2. bryophyllum
  3. begonia
  4. rhizopus
  5. yeast
Question 10 Multiple Choice (Single Answer)

Match the following:
P. Spirogyra 1. Vegetative propagation
Q. Rose 2. Fragmentation
R. Planaria 3. Sexual reproduction
S. Human 4. Regeneration
  1. P - 1, Q - 3, R - 2, S - 4
  2. P - 3, Q - 4, R - 1, S - 2
  3. P - 2, Q - 1, R - 4, S - 3
  4. P - 4, Q - 2, R - 3, S - 1
  5. P - 2, Q - 4, R - 3, S - 1
Question 11 Multiple Choice (Single Answer)

Match the following
a. Regeneration 1. It is the process of getting back a full organism from its body part.
b. Fragmentation 2. It is the process in which new plants are obtained from the parts of old plants without the help of any reproductive organs.
c. Vegetative propagation 3. It is the process of breaking up of the body of a simple multicellular organism into two or more pieces on maturing, each of which subsequently grows to form a complete new organism.
  1. a - 1, b - 3, c - 2
  2. a - 1, b - 2, c - 3
  3. a - 3, b - 2, c - 1
  4. a - 3, b - 1, c - 2
  5. a - 2, b - 3, c - 1
Question 12 Multiple Choice (Single Answer)

Which of the following is correct for sexual reproduction?

  1. Fusion of two male gametes
  2. Fusion of two female gametes
  3. Fusion of one male and one female gamete
  4. Fusion of one male and two polar nuclei
  5. Fusion of two male and two female gametes
Question 13 Multiple Choice (Single Answer)

Reproduction is the process of generating offsprings. Various unicellular organisms reproduce by

  1. fission
  2. regeneration
  3. ovulation
  4. non-disjunction
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