Reproduction in Plants and Animals MCQs 2026

Asexual reproduction in Amoeba occurs mainly through

1. A Budding ✓
2. B Binary fission ✓
3. C Fragmentation ✓
4. D Spore formation ✓

Reproduction in Hydra commonly occurs through

1. A Binary fission ✓
2. B Fragmentation ✓
3. C Spore formation ✓
4. D Budding ✓

Vegetative propagation using stem cuttings is an example of

1. A Asexual reproduction ✓
2. B Sexual reproduction ✓
3. C Parthenogenesis ✓
4. D Gametogenesis ✓

The male reproductive part of a flower is the

1. A Carpel ✓
2. B Pistil ✓
3. C Sepal ✓
4. D Stamen ✓

The female reproductive part of a flower, consisting of stigma, style and ovary, is called

1. A Pistil (carpel) ✓
2. B Stamen ✓
3. C Corolla ✓
4. D Calyx ✓

The transfer of pollen from the anther to the stigma of the same flower is termed

1. A Xenogamy ✓
2. B Allogamy ✓
3. C Autogamy (self-pollination) ✓
4. D Geitonogamy ✓

Pollination by wind is termed

1. A Anemophily ✓
2. B Entomophily ✓
3. C Hydrophily ✓
4. D Ornithophily ✓

Pollination carried out by insects such as bees is called

1. A Anemophily ✓
2. B Entomophily ✓
3. C Hydrophily ✓
4. D Chiropterophily ✓

In angiosperms, double fertilization results in the formation of

1. A Only the zygote ✓
2. B Zygote and primary endosperm nucleus (triploid) ✓
3. C Only endosperm ✓
4. D Only the seed coat ✓

After fertilization, the ovary of a flower typically develops into the

1. A Seed ✓
2. B Endosperm ✓
3. C Embryo ✓
4. D Fruit ✓

After fertilization, the ovule develops into the

1. A Fruit ✓
2. B Pericarp ✓
3. C Seed ✓
4. D Petal ✓

A fruit that develops without fertilization is termed

1. A Parthenocarpic fruit ✓
2. B Aggregate fruit ✓
3. C Multiple fruit ✓
4. D True fruit ✓

Plants such as ferns exhibit a life cycle characterized by

1. A Only asexual reproduction ✓
2. B Only vegetative propagation ✓
3. C Continuous vegetative growth ✓
4. D Alternation of generations (sporophyte and gametophyte) ✓

In humans, the process of formation of sperm cells is called

1. A Spermatogenesis ✓
2. B Oogenesis ✓
3. C Fertilization ✓
4. D Ovulation ✓

The process of formation of egg cells (ova) in females is called

1. A Spermatogenesis ✓
2. B Meiosis only ✓
3. C Oogenesis ✓
4. D Ovulation only ✓

Sperm cells are produced in the

1. A Prostate gland ✓
2. B Epididymis ✓
3. C Vas deferens ✓
4. D Seminiferous tubules of testes ✓

Fertilization in humans normally occurs in the

1. A Fallopian tube (oviduct) ✓
2. B Uterus ✓
3. C Ovary ✓
4. D Vagina ✓

The hormone responsible for triggering ovulation is the

1. A Estrogen surge ✓
2. B Luteinizing hormone (LH) surge ✓
3. C Progesterone surge ✓
4. D FSH released throughout the cycle ✓

The corpus luteum in the ovary primarily secretes

1. A Estrogen only ✓
2. B Progesterone to maintain the uterine lining ✓
3. C Testosterone ✓
4. D Oxytocin ✓

The average human menstrual cycle length is approximately

1. A 14 days ✓
2. B 21 days ✓
3. C 28 days ✓
4. D 35 days ✓

The fertilized egg implants itself in the

1. A Fallopian tube ✓
2. B Endometrium (uterine lining) ✓
3. C Ovary ✓
4. D Cervix ✓

The normal duration of human pregnancy (gestation period) is approximately

1. A 6 months ✓
2. B 7 months ✓
3. C 8 months ✓
4. D 9 months (about 40 weeks) ✓

The fluid-filled sac that cushions and protects the developing fetus is the

1. A Placenta ✓
2. B Chorion ✓
3. C Yolk sac ✓
4. D Amniotic sac ✓

Animals that lay eggs which hatch outside the mother's body are called

1. A Viviparous ✓
2. B Oviparous ✓
3. C Ovoviviparous ✓
4. D Hermaphroditic ✓

Animals such as most mammals that give birth to live young nourished via a placenta are called

1. A Oviparous ✓
2. B Viviparous ✓
3. C Ovoviviparous ✓
4. D Parthenogenetic ✓

Certain sharks and some reptiles retain eggs inside the body until hatching, a mode of reproduction called

1. A Viviparous ✓
2. B Ovoviviparous ✓
3. C Oviparous ✓
4. D Asexual ✓

Fertilization that occurs outside the body of the female, as in many fish and amphibians, is called

1. A External fertilization ✓
2. B Internal fertilization ✓
3. C Parthenogenesis ✓
4. D Self-fertilization ✓

Internal fertilization, where sperm fertilizes the egg inside the female body, is typical of

1. A Fish ✓
2. B Amphibians ✓
3. C Reptiles, birds and mammals ✓
4. D Sponges only ✓

The complete transformation of an organism's body form during development, as seen in frogs and insects, is called

1. A Regeneration ✓
2. B Fragmentation ✓
3. C Budding ✓
4. D Metamorphosis ✓

In frogs, the aquatic larval stage that breathes through gills is called the

1. A Pupa ✓
2. B Nymph ✓
3. C Tadpole ✓
4. D Zygote ✓

In insects such as butterflies, complete metamorphosis includes the stages egg, larva, pupa and

1. A Nymph ✓
2. B Tadpole ✓
3. C Adult ✓
4. D Zygote ✓

Insects like grasshoppers, which lack a pupal stage and whose young resemble small adults, undergo

1. A Complete metamorphosis ✓
2. B No metamorphosis ✓
3. C Alternation of generations ✓
4. D Incomplete (gradual) metamorphosis ✓

The reproductive process in which an egg develops into a new individual without fertilization is called

1. A Budding ✓
2. B Fragmentation ✓
3. C Parthenogenesis ✓
4. D Conjugation ✓

Conjugation, a temporary union for exchange of genetic material, is characteristic of organisms such as

1. A Hydra ✓
2. B Amoeba ✓
3. C Paramecium ✓
4. D Yeast ✓

Yeast commonly reproduces asexually through

1. A Binary fission ✓
2. B Fragmentation ✓
3. C Spore formation only ✓
4. D Budding ✓

Bryophytes such as mosses reproduce sexually and their dominant, photosynthetic generation is the

1. A Sporophyte ✓
2. B Gametophyte ✓
3. C Seed ✓
4. D Fruit ✓

In flowering plants, the male gametophyte is represented by the

1. A Pollen grain ✓
2. B Ovule ✓
3. C Embryo sac ✓
4. D Anther wall ✓

The female gametophyte in angiosperms, containing the egg cell, is called the

1. A Pollen tube ✓
2. B Anther ✓
3. C Style ✓
4. D Embryo sac ✓

The tube that grows from a germinating pollen grain to deliver male gametes to the ovule is the

1. A Style ✓
2. B Filament ✓
3. C Pollen tube ✓
4. D Stigma canal ✓

Cross-pollination between flowers of genetically different plants of the same species mainly promotes

1. A Genetic variation in offspring ✓
2. B Identical clones ✓
3. C Faster germination only ✓
4. D Loss of seeds ✓

Self-pollination in a flower's structure is favored by adaptations such as

1. A Separate male and female flowers on different plants (dioecy) ✓
2. B Cleistogamy (flowers that never open) ✓
3. C Protandry ✓
4. D Herkogamy ✓

Dioecious plants, such as papaya, bear

1. A Both male and female flowers on the same plant ✓
2. B Only hermaphrodite flowers ✓
3. C Male and female flowers on separate individual plants ✓
4. D No flowers at all ✓

Monoecious plants, such as maize, bear

1. A Separate male and female flowers on the same plant ✓
2. B Flowers only on male plants ✓
3. C Only bisexual flowers ✓
4. D No true flowers ✓

The scar left on a seed where it was attached to the fruit wall is called the

1. A Micropyle ✓
2. B Testa ✓
3. C Radicle ✓
4. D Hilum ✓

The minute pore in a seed coat through which water enters during germination is the

1. A Micropyle ✓
2. B Hilum ✓
3. C Plumule ✓
4. D Cotyledon ✓

In a mature seed, the embryonic root that develops into the primary root is the

1. A Plumule ✓
2. B Radicle ✓
3. C Coleoptile ✓
4. D Coleorhiza ✓

The embryonic shoot in a seed that develops into the stem and leaves is the

1. A Radicle ✓
2. B Plumule ✓
3. C Hilum ✓
4. D Testa ✓

Regeneration, whereby a lost body part regrows into a complete organism, is well demonstrated in

1. A Planaria (flatworms) ✓
2. B Humans ✓
3. C Birds ✓
4. D Insects generally ✓

Hermaphrodite animals possessing both male and female reproductive organs include

1. A Humans ✓
2. B Frogs ✓
3. C Earthworms ✓
4. D Birds ✓

The structure that provides nutrient and gas exchange between mother and fetus is the

1. A Placenta ✓
2. B Amnion ✓
3. C Yolk sac ✓
4. D Umbilical vein only ✓