Reproduction Practice Questions
20 free Reproduction practice questions for the General Science. Tap an option to answer — you get instant feedback, the correct answer, and a detailed explanation for every question.
Which of the following best describes reproduction in living organisms?
- A The process of obtaining energy from digested food
- B The process of producing new individuals of the same kind
- C The process of removing metabolic waste from the body
- D The process of responding to environmental changes
Correct answer: The process of producing new individuals of the same kind
Reproduction is the biological process by which living organisms produce offspring of the same species. It helps in the continuation of life from one generation to the next.
Which type of reproduction involves only one parent and produces offspring that are usually genetically identical?
- A Sexual reproduction
- B Asexual reproduction
- C Cross-pollination
- D Internal fertilization
Correct answer: Asexual reproduction
Asexual reproduction involves a single parent and does not require the fusion of gametes. The offspring produced are generally genetically identical to the parent.
Binary fission is commonly seen in which organism?
- A Mango plant
- B Frog
- C Human
- D Amoeba
Correct answer: Amoeba
Amoeba reproduces asexually by binary fission, in which one parent cell divides into two daughter cells. This is a simple method of reproduction in many unicellular organisms.
In budding, a new organism develops from which part of the parent body?
- A Root
- B Leaf
- C Bud
- D Seed
Correct answer: Bud
In budding, a small bud develops as an outgrowth on the body of the parent. This bud grows and may separate to form a new individual, as seen in Hydra and yeast.
Which of the following is an example of vegetative propagation?
- A Formation of new seeds in pea plants
- B Growth of new potato plants from potato tubers
- C Fertilization occurring in humans
- D Pollination carried out by insects
Correct answer: Growth of new potato plants from potato tubers
Vegetative propagation is a form of asexual reproduction in plants where new plants grow from vegetative parts like roots, stems, or leaves. Potato tubers can give rise to new potato plants.
Which structure in a flower produces pollen grains?
- A Stigma
- B Anther
- C Ovary
- D Sepal
Correct answer: Anther
The anther is the part of the stamen that produces pollen grains. Pollen grains contain the male gametes of flowering plants.
The female reproductive part of a flower is called the:
- A Stamen
- B Pistil
- C Petal
- D Filament
Correct answer: Pistil
The pistil is the female reproductive part of a flower. It usually consists of the stigma, style, and ovary.
Pollination refers to the transfer of pollen grains from:
- A Ovary to stigma
- B Anther to stigma
- C Root to stem
- D Petal to sepal
Correct answer: Anther to stigma
Pollination is the transfer of pollen grains from the anther to the stigma of a flower. It is an important step before fertilization in flowering plants.
Which of the following is most likely to help in cross-pollination?
- A Leaves making food
- B Roots absorbing water
- C Stem transporting minerals
- D Insects visiting flowers
Correct answer: Insects visiting flowers
Insects can carry pollen from one flower to another while collecting nectar. This helps in cross-pollination between different flowers of the same species.
After fertilization in a flower, the ovule usually develops into a:
- A Fruit
- B Seed
- C Petal
- D Stigma
Correct answer: Seed
After fertilization, the ovule develops into a seed. The ovary usually develops into a fruit that protects the seeds.
The fusion of male and female gametes is called:
- A Pollination
- B Germination
- C Fertilization
- D Fragmentation
Correct answer: Fertilization
Fertilization is the fusion of male and female gametes to form a zygote. This process is essential in sexual reproduction.
Which cell is formed immediately after fertilization?
- A Spore
- B Zygote
- C Pollen grain
- D Egg cell
Correct answer: Zygote
A zygote is formed when the male gamete fuses with the female gamete. The zygote later divides and develops into an embryo.
In humans, the male gametes are called:
- A Ova
- B Sperms
- C Zygotes
- D Embryos
Correct answer: Sperms
Sperms are the male gametes produced in the testes. They are involved in fertilizing the female egg cell.
In humans, the female gamete is called the:
- A Sperm
- B Ovum
- C Pollen
- D Cell
Correct answer: Ovum
The ovum, or egg cell, is the female gamete in humans. It is produced by the ovaries and can fuse with a sperm during fertilization.
Which organ produces eggs in the human female reproductive system?
- A Uterus
- B Ovary
- C Oviduct
- D Vulva
Correct answer: Ovary
The ovaries produce ova or egg cells in females. They also secrete important reproductive hormones.
Where does fertilization usually occur in human females?
- A Ovary
- B Uterus
- C Oviduct
- D Placenta
Correct answer: Oviduct
In humans, fertilization usually occurs in the oviduct, also called the fallopian tube. The fertilized egg then moves toward the uterus for further development.
The organ in which the human embryo develops during pregnancy is the:
- A Ovary
- B Uterus
- C Testis
- D Oviduct
Correct answer: Uterus
The uterus is the organ where the embryo implants and develops during pregnancy. It provides protection and nourishment to the developing baby.
Which of the following animals shows external fertilization?
- A Human
- B Cow
- C Frog
- D Dog
Correct answer: Frog
Frogs usually show external fertilization, where eggs and sperms fuse outside the female body, often in water. This is different from internal fertilization seen in mammals.
Which method of reproduction is common in fungi such as Rhizopus?
- A Binary fission
- B Seed formation
- C Internal fertilization
- D Spore formation
Correct answer: Spore formation
Rhizopus reproduces by forming spores inside sporangia. These spores can disperse and grow into new individuals under suitable conditions.
Why is sexual reproduction important for variation in a species?
- A It produces offspring from only one parent
- B It creates offspring with the exact same genetic material as the parent
- C It combines genetic material from two parents
- D It does not involve gametes
Correct answer: It combines genetic material from two parents
Sexual reproduction combines genetic material from two parents through the fusion of gametes. This creates variation among offspring, which can help a species adapt to changing environments.