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Reproduction in Organisms Objective Questions with Answers for Students
In humans, where does fertilisation usually occur?
A) Vagina
B) Ovary
C) Fallopian tube
D) Uterus
Option c – Fallopian tube
The fusion of male and female gametes produces which cell?
A) Sperm
B) Ovum
C) Zygote
D) Embryo
Option c – Zygote
The capacity of a single cell to grow into a fully developed, fertile organism is called:
A) Pluripotency
B) Totipotency
C) Mutation
D) Cloning
Option b – Totipotency
How many arteries are present in a typical umbilical cord?
A) One
B) Two
C) Three
D) Four
Option b – Two
Which organ is considered the main female reproductive organ?
A) Fallopian tube
B) Ovary
C) Vagina
D) Uterus
Option b – Ovary
How many chromosome pairs are found in human cells?
A) 11
B) 41
C) 33
D) 23
Option d – 23
At which stage of development are all major body structures identifiable in the embryo?
A) Ovulation
B) Uterus
C) Zygote
D) Foetus
Option d – Foetus
The process where a female gamete develops into a new organism without fertilisation is called:
A) Fragmentation
B) Budding
C) Parthenogenesis
D) Apomixis
Option c – Parthenogenesis
Which organism demonstrates metagenesis in its life cycle?
A) Obelia
B) Spongilla
C) Sycon
D) Euspongia
Option a – Obelia
The life phase when an individual undergoes physical changes to reach reproductive capability is known as:
A) Adolescence
B) Maturity
C) Budding
D) Cloning
Option a – Adolescence
Which of the following is NOT an example of a viviparous Animal?
A) Bird
B) Dog
C) CAT
D) Cow
Option a – Bird
Which of these animals lays eggs (oviparous)?
A) Frog
B) Rabbit
C) Squirrel
D) Mouse
Option a – Frog
The process in which a larva transforms into an adult through significant changes is called:
A) Shifting
B) Budding
C) Metamorphosis
D) Bulging
Option c – Metamorphosis
Which description correctly defines parthenogenesis? 1. A natural asexual reproduction where embryos develop without fertilisation. 2. Male sperm fertilises a female egg outside the female’s body. 3. Male sperm fertilises a female egg inside the female’s body.
A) Only 1
B) Only 2
C) Only 1 and 2
D) Only 3
Option a – Only 1
In Biology, what does “IVF” refer to?
A) In Vitro Fragmentation
B) In Vitro Fertilisation
C) Internal Vitro Fragmentation
D) Internal Venom Frosting
Option b – In Vitro Fertilisation
Which human body structure undergoes growth phases called Anagen, Catagen, and Telogen?
A) Tooth
B) Hair
C) Nails
D) Nose
Option b – Hair
Bryophyllum produces buds along leaf margins that can grow into new plants. This represents:
A) Vegetative propagation
B) Budding
C) Spore formation
D) Regeneration
Option a – Vegetative propagation
To determine if a tall plant came from two tall parents or one tall and one short parent, which method is appropriate?
A) Self-pollination
B) Cross-pollination
C) Negative propagation
D) Tissue Culture
Option a – Self-pollination
Which statement about biological variation is incorrect?
A) Variation is minimal in asexual reproduction
B) Every variation in a species has an equal chance of survival
C) Genetic changes result in variation
D) Environmental factors can select variants
Option b – Every variation in a species has an equal chance of survival
Hyphae are:
A) Produced by yeast
B) Thread-like structures formed by fungi
C) Reproductive cells
D) Structures that prevent water loss in wet conditions
Option b – Thread-like structures formed by fungi
Budding, a form of asexual reproduction, occurs in:
A) Amoeba
B) E. coli
C) Yeast
D) Plasmodium
Option c – Yeast
A fruit that forms from the thalamus rather than the ovary is called a false fruit. Common examples include:
A) Mango and banana
B) Orange and mango
C) Guava and cherry
D) Apple and strawberry
Option d – Apple and strawberry
Which of the following is an example of a false fruit?
A) Peach
B) Banana
C) Apricot
D) Apple
Option d – Apple
Identify the drupe among the following fruits:
A) Brinjal
B) Orange
C) Tomato
D) Coconut
Option d – Coconut
How many chromosomes are present in a normal human somatic cell?
A) 56
B) 48
C) 46
D) 42
Option c – 46
Which Animal reproduces by laying eggs?
A) Seal
B) Dolphin
C) Whale
D) Platypus
Option d – Platypus
The horticultural technique of joining parts of two plants to produce a combined plant is called:
A) Grafting
B) Layering
C) Budding
D) Cutting
Option a – Grafting
When fruits burst to scatter seeds a short distance from the parent plant, this dispersal method is called:
A) Hydrochory
B) Anemochory
C) Zoochory
D) Autochory
Option d – Autochory
The correct pathway of a pollen tube in a flower is:
A) Stigma → Style → Ovary
B) Style → Stigma → Ovary
C) Ovary → Pistil → Style
D) Pistil → Stigma → Ovary
Option a – Stigma → Style → Ovary
The primary way oral contraceptive pills work is by:
A) Destroying the egg
B) Destroying the sperm
C) Destroying the zygote
D) Preventing the release of an egg
Option d – Preventing the release of an egg
Which plant produces unisexual flowers?
A) Hibiscus
B) Papaya
C) Sunflower
D) Mustard
Option b – Papaya
After fertilisation, which plant structures develop into the fruit and the seed?
A) Ovule and ovary
B) Ovary and ovule
C) Ovary only
D) Ovule only
Option b – Ovary and ovule
A key advantage of sexual reproduction compared to asexual reproduction is:
A) Higher offspring numbers per cycle
B) Stronger and healthier offspring
C) Genetically identical offspring
D) Increased variation among offspring
Option d – Increased variation among offspring
Which two processes in sexual reproduction generate genetic variation?
A) Meiosis and fertilisation
B) Mitosis and fertilisation
C) Meiosis and conjugation
D) Mitosis and binary fission
Option a – Meiosis and fertilisation
In angiosperms, pollen grains produce two male gametes. One fuses with the egg cell. What happens to the other?
A) Fuses with the same egg
B) Fuses with a different egg
C) Degenerates
D) Fuses with the diploid secondary nucleus
Option d – Fuses with the diploid secondary nucleus
In sexually reproducing Organisms, which statement applies to both parent and offspring?
A) Chromosome number increases but DNA stays constant
B) Chromosome number and DNA remain constant
C) Chromosome number decreases but DNA stays constant
D) Both chromosome number and DNA decrease
Option b – Chromosome number and DNA remain constant
The interaction between a flower and a honeybee primarily helps in:
A) Faster plant growth
B) Pollination
C) Quicker pollen germination
D) Increase in flower size
Option b – Pollination
During which process is the DNA content of a flowering plant halved?
A) Fruit formation
B) Seed germination
C) Pollen formation
D) Flower bud formation
Option c – Pollen formation
What is the correct sequence of sexual reproduction in angiosperms?
A) Egg → Zygote → Embryo → Seed
B) Embryo → Egg → Zygote → Seed
C) Egg → Embryo → Zygote → Seed
D) Egg → Seed → Zygote → Embryo
Option a – Egg → Zygote → Embryo → Seed
Which sequence correctly represents reproductive events in flowering plants?
A) Ovule → Fruit; Egg → Embryo; Zygote → Seed; Ovary → Egg
B) Embryo → Egg; Ovary → Fruit; Ovule → Zygote; Zygote → Seed
C) Ovary → Fruit; Zygote → Egg; Embryo → Ovule; Seed → Fruit
D) Egg → Zygote; Zygote → Embryo; Ovule → Seed; Ovary → Fruit
Option d – Egg → Zygote; Zygote → Embryo; Ovule → Seed; Ovary → Fruit
Vegetative propagation through buds is seen in which plant?
A) Potato
B) Ginger
C) Sugarcane
D) Onion
Option a – Potato
Who first observed the algae Spirogyra in 1674 and referred to the moving Organisms as “Animalcules,” meaning tiny animals?
A) Maurice Wilkins
B) Barthelemy Dumortier
C) Robert Remak
D) Anton Van Leeuwenhoek
Option d – Anton Van Leeuwenhoek
Who conducted detailed studies on the structure and reproductive system of algae in 1935?
A) F.E. Fritsch
B) M.O.P. Iyengar
C) Carolus Linnaeus
D) William Henry
Option a – F.E. Fritsch
Reproduction involving only a single parent is known as:
A) External fertilisation
B) In vitro fertilisation
C) Sexual reproduction
D) Asexual reproduction
Option d – Asexual reproduction
The central, innermost structure of a flower is called:
A) Pistil
B) Stamens
C) Petals
D) Sepals
Option a – Pistil
Which part of a flower has a sticky tip on the pistil that captures pollen?
A) Style
B) Stigma
C) Sepal
D) Ovary
Option b – Stigma
The yellow powdery substance found in the center of a flower is called:
A) Stigma
B) Stamen
C) Pistil
D) Style
Option b – Stamen
Hydra reproduces by which method?
A) Fragmentation
B) Budding
C) Binary Fission
D) Spore Formation
Option b – Budding
Which of the following is a single-celled green alga?
A) Chlorophyta
B) Cladophora
C) Chlamydomonas
D) Oedogonium
Option c – Chlamydomonas
Which of the following microorganism classifications is correctly paired? (I – Paramecium – Fungi, II – Penicillium – Protozoa)
A) Both I and II
B) Only II
C) Neither I nor II
D) Only I
Option c – Neither I nor II
Pteridophytes reproduce primarily by:
A) Budding
B) Spores
C) Pollens
D) Seeds
Option b – Spores
The process in which a fruit develops without fertilisation is called:
A) Gametogamy
B) Parthenocarpy
C) Hybridogenesis
D) Apomixis
Option b – Parthenocarpy
Flowerless plants that produce cones and seeds not enclosed in an ovary are called:
A) Gymnosperms
B) Angiosperms
C) Bryophytes
D) Hydrophytes
Option a – Gymnosperms
Asexual reproduction where new plants grow from roots, stems, leaves, or buds is termed:
A) Grafting propagation
B) Layering propagation
C) Vegetative propagation
D) Budding propagation
Option c – Vegetative propagation
How do red algae reproduce vegetatively?
A) Spore formation
B) Fission
C) Fragmentation
D) Cutting
Option c – Fragmentation
Which type of chromosome generates ‘masked’ mRNAs needed for early development?
A) Polytene chromosome
B) Lampbrush chromosome
C) Sex chromosome
D) Autosomal chromosome
Option b – Lampbrush chromosome
Simple multicellular Organisms that divide into multiple parts, each forming a new organism, reproduce by:
A) Binary Fission
B) Fragmentation
C) Multiple Fission
D) Reproduction
Option b – Fragmentation
Which algae undergoes anisogamous fusion of gametes?
A) Eudorina
B) Spirogyra
C) Ulothrix
D) Volvox
Option a – Eudorina
Which of the following is NOT a method of asexual reproduction in plants?
A) Vegetative propagation
B) Spore formation
C) Pollination
D) Budding
Option c – Pollination
Which statement about reproduction in flowering plants is INCORRECT?
A) Reproduction can occur through seeds
B) Reproduction can occur from stem fragments
C) Reproduction can occur via spores
D) Reproduction cannot occur from tissues grown in artificial media
Option c – Reproduction can occur via spores
In humans, fertilisation occurs through which method?
A) In Vitro Fertilisation
B) Internal Fertilisation
C) Ex Vitro Fertilisation
D) External Fertilisation
Option b – Internal Fertilisation
We covered all the Reproduction in Organisms Objective Questions with Answers above in this post for free so that you can practice well for the exam.
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