How do Organisms Reproduce Class 10 MCQs
How do Organisms Reproduce – MCQs with Answers & Explanations
Class: 10 | Subject: Science (Biology)
Section: How do Organisms Reproduce
Based on NCERT & CBSE Board Examination Pattern
Section: How do Organisms Reproduce
Based on NCERT & CBSE Board Examination Pattern
1. Reproduction is essential for:
Answer: B. Survival of species
Reproduction ensures continuity of species by producing new individuals.
Reproduction ensures continuity of species by producing new individuals.
2. Asexual reproduction involves:
Answer: C. One parent
Asexual reproduction produces genetically identical offspring from a single parent.
Asexual reproduction produces genetically identical offspring from a single parent.
3. Binary fission occurs in:
Answer: A. Amoeba
In binary fission, one cell divides into two identical daughter cells.
In binary fission, one cell divides into two identical daughter cells.
4. Budding is seen in:
Answer: A. Hydra
A small bud develops on parent body and grows into a new organism.
A small bud develops on parent body and grows into a new organism.
5. Vegetative propagation occurs in:
Answer: A. Rose
Stem cuttings of rose grow into new plants.
Stem cuttings of rose grow into new plants.
6. DNA copying is important because it:
Answer: C. Transfers traits
DNA replication ensures genetic information passes to offspring.
DNA replication ensures genetic information passes to offspring.
7. Sexual reproduction involves:
Answer: B. Gamete fusion
Male and female gametes fuse to form a zygote.
Male and female gametes fuse to form a zygote.
8. Male reproductive organ in plants:
Answer: C. Stamen
Stamen produces pollen grains containing male gametes.
Stamen produces pollen grains containing male gametes.
9. Pollination is transfer of pollen from:
Answer: B. Anther to stigma
This transfer enables fertilization in flowering plants.
This transfer enables fertilization in flowering plants.
10. Fertilization results in formation of:
Answer: B. Zygote
Fusion of gametes forms zygote which develops into embryo.
Fusion of gametes forms zygote which develops into embryo.
11. Human fertilization occurs in:
Answer: C. Fallopian tube
Sperm meets ovum in oviduct leading to fertilization.
Sperm meets ovum in oviduct leading to fertilization.
12. Implantation occurs in:
Answer: B. Uterus wall
Embryo embeds in uterine lining for nourishment.
Embryo embeds in uterine lining for nourishment.
13. AIDS is caused by:
Answer: B. Virus (HIV)
HIV attacks immune system weakening body defense.
HIV attacks immune system weakening body defense.
14. Testes produce:
Answer: B. Sperm
They also secrete testosterone hormone.
They also secrete testosterone hormone.
15. Ovary produces:
Answer: B. Ovum
Female gametes are produced in ovaries.
Female gametes are produced in ovaries.
16. Placenta connects:
Answer: A. Mother & embryo
Placenta supplies oxygen and nutrients to fetus.
Placenta supplies oxygen and nutrients to fetus.
17. Fragmentation occurs in:
Answer: A. Spirogyra
Body fragments grow into new individuals.
Body fragments grow into new individuals.
18. Regeneration is seen in:
Answer: A. Planaria
Each body piece can regenerate into full organism.
Each body piece can regenerate into full organism.
19. Seeds develop from:
Answer: A. Ovule
After fertilization ovule becomes seed.
After fertilization ovule becomes seed.
20. Fruit develops from:
Answer: B. Ovary
Ovary enlarges and forms fruit after fertilization.
Ovary enlarges and forms fruit after fertilization.