Please refer to the MCQ Questions for Class 12 Biology Chapter 1 Reproduction in Organisms with Answers. The following Reproduction in Organisms Class 12 Biology MCQ Questions has been designed based on the latest syllabus and examination pattern for Class 12. Our experts have designed MCQ Questions for Class 12 Biology with Answers for all chapters in your NCERT Class 12 Biology book.
Reproduction in Organisms Class 12 MCQ Questions with Answers
See below Reproduction in Organisms Class 12 Biology MCQ Questions, solve the questions and compare your answers with the solutions provided below.
Question. Offsets are produced by
(a) meiotic divisions
(b) mitotic divisions
Question. Which one of the following statements is not correct?
(a) Offspring produced by the asexual reproduction are called clone.
(b) Microscopic, motile, asexual reproductive structures are called zoospores.
(c) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem.
(d) Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes.
Question. ‘Nothing lives forever, but life continues’. What does it mean?
(a) Older die but new are produced due to reproduction.
(b) Nothing can produce without death.
(c) Death has nothing to do with the continuation of life.
(d) Parthenogenesis is must for sexual reproduction
Question. Which of the following pairs is not correctly matched?
Mode of reproduction Example
(a) Binary fission Sargassum
(b) Conidia Penicillium
(c) Offset Water hyacinth
(d) Rhizome Banana
Question. In ginger, vegetative propagation occurs through
Question. Which one of the following is correctly matched?
Question. Which one of the following pairs is wrongly matched while the remaining three are correct?
(a) Penicillium – Conidia
(b) Water hyacinth – Runner
(c) Bryophyllum – Leaf buds
(d) Agave – Bulbils
Question. The “eyes” of the potato tuber are
(a) root buds
(b) flower buds
(c) shoot buds
(d) axillary buds.
Question. Vegetative propagation in Pistia occurs by
Question. Vegetative reproduction of Agave occurs through
Question. In some plants, the female gamete develops into embryo without fertilisation. This phenomenon is known as
Question. Which of the following flowers only once in its lifetime?
(a) Bamboo species
Question. Vegetative propagation in mint occurs by
Question. During regeneration, modification of an organ to other organ is known as
(d) accretionary growth.
Question. For union between stock and scion in grafting which one is the first to occur?
(a) Formation of callus
(b) Production of plasmodesmata
(c) Differentiation of new vascular tissues
(d) Regeneration of cortex and epidermis
Question. Which one of the following generates new genetic combinations leading to variation?
(a) Vegetative reproduction
(c) Sexual reproduction
(d) Nucellar polyembryony
Question. Flowers are unisexual in
(a) China rose
Question. Product of sexual reproduction generally generates
(a) new genetic combination leading to variation
(b) large biomass
(c) longer viability of seeds
(d) prolonged dormancy.
Question. Meiosis takes place in
Question. Which one of the following is monoecious?
(d) Date palm
Question. Why is vivipary an undesirable character for annual crop plants?
(a) It reduces the vigour of the plant.
(b) It adversely affects the fertility of the plant.
(c) The seeds exhibit long dormancy.
(d) The seeds cannot be stored under normal conditions for the next season.
Question. In oogamy, fertilisation involves
(a) a small non-motile female gamete and a large motile male gamete
(b) a large non-motile female gamete and a small motile male gamete
(c) a large non-motile female gamete and a small non-motile male gamete
(d) large motile female gamete and a small nonmotile male gamete.
Question. Which one of the following plants is monoecious?
Question. The sexual reproduction is absent in
Question. Parthenogenesis is
(a) development of embryo without fertilisation
(b) development of fruit without fertilisation
(c) development of fruit without hormones
(d) development of embryo from egg without fertilisation.
Question. The process of series of changes from larva to adult after embryonic development is called
Question. The oestrous cycle is a characteristic of
(a) human females only
(b) mammalian females other than primates
(c) human males only
(d) mammalian males other than primates.
Question. Which form of reproduction is correctly matched?
(a) Euglena → transverse binary fission
(b) Paramecium → longitudinal binary fission
(c) Amoeba → multiple fission
(d) Plasmodium → binary fission
Question. In a practical test, a student has to identify the organisms in which syngamy does not occur. In those organisms the female gamete undergoes development to form new organisms ithout fertilization. This phenomenon is called “X”. Identify the organisms and the phenomenon “X”.
(a) Frog, Parthenogenesis
(b) Lizards, Gametogenesis
(c) Rotifers, Embryogenesis
(d) Honeybee, Parthenogenesis
Question. Which reproductive adaptation is characteristic of most terrestrial vertebrates but not of most aquatic vertebrates?
(a) External fertilization
(b) Internal fertilization
(c) Motile gametes
(d) External development
Question. The period from birth to the natural death of an organism represents
(a) gametophytic phase
(b) sporophytic phase
(c) life span
(d) life cycle
Question. Which ot the following has the longest life span ?
Question. Which of the following statements is incorrect ?
(i) Bamboo species flower only once in their life time, generally after 50-100 years and produce large number of fruits and die.
(ii) In animals, the juvenile phase is followed by morphological and physiological changes prior to active reproductive behaviour.
(iii) The reproductive phase is of same duration in all organisms.
(iv) Juvenile phase is the period of growth between the birth of an individual till it reaches reproductive maturity.
(a) Only (i)
(b) Only (ii)
(c) Only (iii)
(d) Only (iv)
Question. In all the methods of asexual reproduction
(a) offsprings produced are genetically identical to the parents.
(b) offsprings produced are genetically different from the parents.
(c) offsprings produced may or may not be identical to the parents.
(d) None of the above
Question. A clone is a group of individuals obtained through
(c) asexual reproduction
Question. In protists and monerans, asexual reproduction occurs by
(b) binary fission
(d) multiple fission
Question. In yeast cell division results in a small cell called
Question. Fleshy buds produced in the axil of leaves, which grow to form new plants when shed and fall on ground are called
Question. The term ‘Terror of Bengal’ is used for
(a) Bengal tiger
(b) water hyacinth
(c) algal bloom
(d) aquatic fauna
Question. The term clone is used to describe such ___________and ________ similar individual.
(a) chemically, genetically
(b) physiologically, chemically
(c) morphologically, genetically
(d) morphologically, metabolically
Question. Asexual reproduction is common among
(a) single celled organisms only.
(b) plants only.
(c) animals with simple organization.
(d) single celled animals, plants and animals with simple organizations.
Question. In which of the following pairs the plants can be vegetative propagated by leaf buds?
(a) Bryophyllum and Kalanchoe
(b) Chrysanthemum and Agave
(c) Agave and Kalanchoe
(d) Asparagus and Bryophyllum
Question. The end of vegetative phase in plants which marks the beginning of the reproductive phase can be easily seen in the higher plants when they come to
(d) None of the above
Question. Sexual reproduction can be grouped into _______ distinct states.
Question. The terms homothallic and monoecious are used to denote
(a) bisexual condition
(b) unisexual condition
(c) staminate flowers
(d) pistillate flowers
Question. Syngamy means
(a) fusion of similar spores.
(b) fusion of gametes.
(c) fusion of dissimilar spores.
(d) fusion of cytoplasm.
Question. Development of an egg without fertilization is called
Question. In sexual reproduction, offsprings resemble the parents
(a) structurally but not functionally.
(b) functionally but not structurally.
(c) both structurally and functionally.
(d) neither structurally nor functionally.
Question. Oestrus cycle is seen in
(a) cows and sheep
(b) rats and deers
(c) dogs and tiger
(d) all of the above
Question. Which of the followings is a post-fertilization event in flowering plants ?
(a) Transfer of pollen grains
(b) Embryo development
(c) Formation of flower
(d) Formation of pollen grains