Class 12th Biology VVI Objective Question in English Reproduction In Organism Chapter
REPRODUCTION IN ORGANISM
1. The process of formation of gametes is called
(a) Gametogenesis
(b) Cytokinesis
(c) Sporogenesis
(d) Meiocytes
| Answer ⇒ A |
2. The menstrualcycle occurs in
(a) Human
(b) Apes
(c) Both
(d) None of the above
| Answer ⇒ C |
3. Which are does not show Ostrus cycle
(a) Dog
(b) Cow
(c) Monkey
(d) None of the above
| Answer ⇒ C |
4. Amoeba reproduces by
(a) Binary fission
(b) Buds
(c) Conidia
(d) None of the above
| Answer ⇒ A |
5. Which one is not bisexual
(a) Leech
(b) Tapeworm
(c) Dog
(d) None of the above
| Answer ⇒ C |
6. The process of development of the embryo is called
(a) Sporogenesis
(b) Embryogenesis
(c) Vivipary
(d) None of the above
| Answer ⇒ B |
7. The fusion of gametes is called
(a) Syngamyn
(b) Pollination
(c) Parthenogenesis
(d) None of the above
| Answer ⇒ A |
8. How many chromosomes are present in a human gamete
(a) 46
(b) 48
(c) 23
(d) None of the above
| Answer ⇒ C |
9. Which is not unisexual
(a) Cow
(b) Dog
(c) Earthworm
(d) All of the above
| Answer ⇒ C |
10. What is fertilization?
(a) The fusion of egg with male nuclei.
(b) The fusion of egg with secondary nucleus
(c) The fusion of egg with synergid
(d) None of these
| Answer ⇒ B |
11. Oviparous are
(a) hen
(b) snake
(c) crocodile
(d) all of these
| Answer ⇒ D |
12. Copulatory organs are not formed in
(a) mammals
(b) reptiles
(c) octopus
(d) birds
| Answer ⇒ C |
13. In which of the following alternation of generations, the main plant is a gametophyte?
(a) Haplontic
(b) Diplontic
(c) Haplo-diplontic
(d) None of these
| Answer ⇒ A |
14. In which of the following, calyx covers the whole fruit?
(a) Physalis
(b) Tomato
(c) Brinjal
(d) Litchi
| Answer ⇒ A |
15. The Oestrus cycle occurs in
(a) dog
(b) cow
(c) buffalo
(d) all of these
| Answer ⇒ D |
16. Which one of these is haploid?
(a) Egg
(b) Zygote
(c) Integument
(d) Nucellus
| Answer ⇒ A |
17. Which one of these is diploid?
(a) Egg
(b) Pollen
(c) Male gamete
(d) Zygote
| Answer ⇒ D |
18. In which of the following plant body is a gametophyte?
(a) Algae
(b) Fungi
(c) Bryophytes
(d) All of these
| Answer ⇒ D |
19. Which of the following is oviparous?
(a) Crocodile
(b) Snake
(c) Hen
(d) All of these
| Answer ⇒ D |
20. Diploid chromosome number in potato is
(a) 34
(b) 40
(c) 48
(d) 32
| Answer ⇒ C |
21. Haploid chromosome number in a dog is
(a) 23
(b) 39
(c) 19
(d) 4
| Answer ⇒ B |
22. The multiplication of genetically identical copies of a cultivar by asexual means is called
(a) mass culture of plant cells
(b) organogenesis
(c) clonal variation
(d) None of these
| Answer ⇒ C |
23. Parthenogenesis is the development of
(a) fruit without hormones
(b) embryo without fertilization
(c) embryo from an egg without fertilization
(d) fruit without fertilization
| Answer ⇒ C |
24. Upon fertilization, while the ovule develops into a seed, which structure develops from the carpel?
(a) Perisperm
(b) Pericarp
(c) Testa
(d) None of these
| Answer ⇒ B |
25. Which one is not an oviparous animal?
(a) Snake
(b) Chicken
(c) Crocodile
(d) Human
| Answer ⇒ D |
26. Which of the following is incorrect?
(a) The length of time which an organism is likely to live is called its life span.
(b) Binary fission takes place in Bacteria and Amoeba.
(c) Hydra reproduces asexually by budding.
(d) Strobilanthus kunthiana flowers once in two years.
| Answer ⇒ D |
27. New plants develop from leaves in
(a) Eichhornia
(b) Bryophyllum
(c) Cycas
(d) Gladiolus
| Answer ⇒ B |
28. External fertilization takes place in
(a) algae
(b) reptiles
(c) birds
(d) mammals
| Answer ⇒ A |
29. External fertilization does not takes place in
(a) oyster
(b) sea star
(c) jellyfish
(d) mammals
| Answer ⇒ D |
30. Internal fertilization takes place in
(a) birds
(b) frog
(c) algae
(d) fish
| Answer ⇒ A |
31. Reproduction by ‘budding’ occurs in
(a) yeast
(B) paramoecium
(C) penicillium
(D) all of these
| Answer ⇒ A |
32. Penicillium reproduces by :
(a) budding
(b) fragmentation
(c) gemmules
(d) conidia
| Answer ⇒ D |
33. In which of the following fertilization is internal?
(a) Fishes
(b) Amphibians
(c) Majority of Algae
(d) Angiosperms
| Answer ⇒ D |
34. Which one is incorrect?
(a) Sexual reproduction involves the formation and fusion of gametes
(b) Pre-fertilization events include gametogenesis and gamete transfer
(c) Gametes are diploid in nature.
(d) Syngamy occurs between the male and female gametes
| Answer ⇒ C |
35. The period from birth to the natural death of an organism represents its (a) life cycle
(b) life span
(d) vegetative phase
(d) all of these
| Answer ⇒ B |
36. Morphologically and genetically similar organisms are called
(a) clone
(b) somaclones
(c) cosmids
(d) hybrids
| Answer ⇒ A |
37. In which of the following water is not essential for gamete transfer?
(a) Algae
(b) Bryophytes
(c) Pteridophytes
(d) Gymnosperms
| Answer ⇒ D |
38. Which one has a diploid parental body?
(a) Fungi
(b) Human
(c) Algae
(d) Bryophytes
| Answer ⇒ B |
39. Binary fission takes place in
(a) Amoeba
(b) Paramecium
(c) Bacteria
(d) None of the above
| Answer ⇒ B |
40. Which of the following reproduces by budding?
(a) Hydra
(b) Saccharomyces
(c) Amoeba
(d) (a) and (b)
| Answer ⇒ D |
41. Aplanospores are formed in
(a) Sycon
(b) Rhizopus
(c) Mucor
(d) (b) and (c)
| Answer ⇒ D |
42. Conidia are formed in
(a) Aspergillus.
(b) Rhizopus
(c) Chlamydomonas
(d) None of the above
| Answer ⇒ A |
43. Which of the following is a modified stem and used for vegetative propagation?
(a) Rhizome
(b) Bulb
(c) Tuber
(d) All of the above
| Answer ⇒ D |
44. Which statement is correct with regard to Eichhornia?
(a) It is an aquatic plant.
(b) It is also known as the terror of Bengal.
(c) It reproduces by offset.
(d) All of the above
| Answer ⇒ D |
45. Which one is monocarpic?
(a) Agave
(b) bamboo
(c) (a) and (b)
(d) Kalanchoe
| Answer ⇒ C |
46. In which of the following ‘new plants develop on leaves?
(a) Bryophyllum
(b) Kalanchoe
(c) (a) and (b)
(d) Helianthus
| Answer ⇒ C |
47. Internal fertilization takes place in
(a) Mammals
(b) Reptiles
(c) Birds
(d) All of the above
| Answer ⇒ D |
48. Which of the following type of gametes occur in Chlamydomonas?
(a) Isogametes
(b) Anisogametes
(c) Oogametes
(d) All of the above
| Answer ⇒ D |
49. Which of the following is a hermaphrodite?
(a) Tapeworm
(b) Sponge
(c) Earthworm
(d) All of the above
| Answer ⇒ D |
50. Which of the following are formed without completion of the fertilization process?
(a) Bee
(b) Pea
(c) Rotifers
(d) (a) and (c)
| Answer ⇒ D |
51. Which of the following animals give birth to young ones.
(a) Ornithorhynchus and Echidna
(b) Macropus and Pteropus
(c) Balaenoptera and Homo sapiens
(d) (a) and (c)
| Answer ⇒ D |
52. Viviparity is found in
(a) sharks
(b) lizards
(c) frogs
(d) birds
| Answer ⇒ A |
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