Please refer to below Exam Question for Class 12 Biology Chapter 1 Reproduction in Organisms. These questions and answers have been prepared by expert Class 12 Biology teachers based on the latest NCERT Book for Class 12 Biology and examination guidelines issued by CBSE, NCERT, and KVS. We have provided Class 12 Biology exam questions for all chapters in your textbooks. You will be able to easily learn problems and solutions which are expected to come in the upcoming class tests and exams for standard 12th.

Chapter 1 Reproduction in Organisms Class 12 Biology Exam Question

All questions and answers provided below for Exam Question Class 12 Biology Chapter 1 Reproduction in Organisms are very important and should be revised daily.

Objective Type Questions

Question. In seed plants carrier of male gamete is
(a) Pistil
(b) Leaf
(c) Fruit
(d) None of these

Question. Pollen grain have to be transferred to which plant part before fertilisation
(a) Leaf
(b) Fruit
(c) Seed
(d) Stigma

Question. Pollen grains germinate on which plant part after pollination
(a) Fruit
(b) Leaf
(c) Corolla
(d) None of these

Question. The process of fusion of gametes is called
(a) Pollination
(b) Pre–fertilisation
(c) Juvenile phase
(d) None of these

Question. Development of new organisms without fertilization is termed as
(a) Pollination
(b) Embryogenesis
(c) Seed formation
(d) Parthenogenesis

Question. Parthenogenesis is common in
(a) Honey bees
(b) Rotifers
(c) Turkey birds
(d) All of these

Question. When syngamy occurs inside the body of organisms is called
(a) Embryogenesis
(b) Parthenocarpy
(c) External fertilisation
(d) None of these

Question. Humans exhibit internal fertilization. The motile gamete in humans is
(a) Female gamete
(b) Male gamete
(c) Both (a) and (b)
(d) None of the two

Question. In seed plants, non–motile male gametes are carried to female gamete through
(a) Stamens
(b) Stigma
(c) Pollen tube
(d) None of these

Question. In all sexually reproducing organisms the zygote is
(a) Polyploid
(b) Haploid
(c) Diploid
(d) None of these

Question. Zygote is formed inside the body of organisms in which of the following
(a) Frog
(b) Fishes
(c) Human
(d) All of these

Question. Spores formed from zygote in organisms with haplontic life cycle are produced by
(a) Mitosis
(b) Meiosis
(c) Any of the two
(d) Without division zygote itself grow

Question. Every sexually reproducing organism begins its life as
(a) Fruit
(b) Flower
(c) Zygote
(d) None of these

Question. During embryogenesis which type of cell division takes place
(a) Mitosis
(b) Meiosis
(c) Both (a) and (b)
(d) None of these

Question. In viviparous animals
(a) Zygote develops inside the female body
(b) Zygote develops outside the female body
(c) Both (a) and (b)
(d) Zygote develops inside the male body

Question. Seed develops from
(a) Zygote
(b) Ovule
(c) Stigma
(d) Stamen

Question. Pericarp is
(a) Thick wall around seed
(b) Thick wall around ovule
(c) Thick wall around fruit.
(d) Thick wall around egg

Question. In flowering plants, the progenitor of the next generation the embryo is present in
(a) Thalamus
(b) Mature seed
(c) Anther
(d) None

Question. All organisms have to reach a certain stage of growth and maturity in their life before they reproduce sexually. That period of growth is called
(a) Post fertilization phase
(b) Juvenile phase
(c) Fertilization phase
(d) None of these

Question. The end of juvenile phase can be seen in plants when they
(a) bear fruit
(b) bear flower
(c) grow adventitious roots
(d) none of these

Question. Which of the following plant flowers once in a lifetime?
(a) Marigold
(b) Coconut
(c) Banana
(d) None of these

Question. Scientific name of Neelakuranji is
(a) Bryophyllum
(b) Cuscuta reflexa
(c) Antirrhinum
(d) Strobilanthus kunthiana

Question. In sheep the cyclical changes in the activities of ovaries and accessory ducts as well as hormones during the reproductive phase is known as
(a) Menstrual cycle
(b) Cardiac cycle
(c) Cardinal cycle
(d) None of these

Question. The main events of pre–fertilization phase are
A. Gametogenesis
B. Gamete transfer
C. Gamete fusion
D. Embryogenesis
Options –
(a) A and C
(b) A and B
(c) A, B and D
(d) None of these

Question. Gametes are
(a) Haploid
(b) Diploid
(c) May be (a) or (b)
(d) Polyploid

Question. Cladophora belongs to
(a) Fungi
(b) Angiosperms
(c) Bryophyta
(d) None of these

Question. Heterogametes are found in
A. Homo sapiens
B. Fucus
C. Cow
D. Cladophora
Options –
(a) A, B and C
(b) B, C and D
(c) All of these
(d) A, C and D

Question. Two distinct type of gametes are known as
(a) Homogametes
(b) Isogametes
(c) Mesogametes
(d) None of these

Question. Heterothailic condition is described as
(a) Bisexual condition
(b) Unisexual condition
(c) Both (a) and (b)
(d) Sterile plants

Question. The period from birth to natural death of an organism represents.
(a) Reproductive phase
(b) Life span
(c) Pre–reproductive phase
(d) None

Question. Match the following.

A. Crow	i. 1–2 weeks
B. Parrot	ii. 60 years
C. Crocodile	iii. 15 years
D. Butterfly	iv. 140 years

Options –
(a) A–iv, b–iii, c–ii, d–i
(b) A–iv, b–iii, c–i, d–ii
(c) A–iii, b–ii, c–iv, d–i
(d) A–iii, b–iv, c–ii d–i

Question. Which of the following factors play an important role in determining how an organism reproduces?
(a) Organism’s habitat
(b) Internal physiology of organisms
(c) Both (a) and (b)
(d) None of these

Question. When offspring is produced by a single parent with or without the involvement of gamete formation, the process is known as
(a) Sexual reproduction
(b) Asexual reproduction
(c) Both (a) and (b)
(d) None of these

Question. Mode of reproduction in which cell divides into two halves and each part rapidly grows to form an adult
(a) Gemmule formation
(b) Binary fission
(c) Sexual reproduction
(d) None of these

Question. Gemmules are the asexual reproducing structure of
(a) Sponges
(b) Yeast
(c) Hydra
(d) Amoeba

Question. Which of the following is not a vegetative propagule of plants?
(a) Runner
(b) Rhizome
(c) Offset
(d) Gemmule

Question. Leaf buds are the vegetative propagules of
(a) Potato
(b) Ginger
(c) Water hyacinth
(d) None of the given options seem to be the correct answer

Question. In banana a new plant emerges from
(a) Leaf
(b) Fruit
(c) Rhizome
(d) None of these

Question. In bryophyllum adventitious buds arise from
(a) Notches present at margins of leaves
(b) Internodes
(c) Nodes
(d) None of these