Free Reproduction MCQs with Answers
1,220 Reproduction MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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Read the Reproduction notesFree MDCAT chapter notes with key terms1,220 questions · page 49 of 61
- A. Single sperm and two vegetative cells
- B. Three sperms
- C. Two sperms and a vegetative cell
- D. Single sperm and a vegetative cell.
Explanation: The protoplast of the male gametophyte divides mitotically to produce two unequal cells - a small generative cell and a large vegetative…
Correct answer: Two sperms and a vegetative cell- A. Apogamy
- B. Cleistogamy
- C. Geitonogamy
- D. Xenogamy
Explanation: Geitonogamy involves the transfer of pollen from one flower of a plant to the stigma of another flower of the same plant.
Correct answer: Geitonogamy- A. Fruit, where style was present
- B. Seed, where micropyle was present
- C. Seed, where funicle was attached
- D. Fruit, where it was attached to the pedicel
Explanation: Ovule is an integumented megasporangium found in spermatophytes which develops into seed after fertilization.
Correct answer: Seed, where funicle was attached- A. Sargassum
- B. Ectocarpus
- C. Ulothrix
- D. Spirogyra
Explanation: A. Sargassum: Sargassum is a brown alga that reproduces sexually. However, it does not exhibit isogamy with non-flagellated gametes.
Correct answer: Spirogyra- A. Fertilization of a flower by the pollen from another flower of the same plant
- B. Fertilization of a flower by the pollen from the same flower
- C. Fertilization of a flower by the pollen from a flower of another plant in the same population
- D. Fertilization of a flower by the pollen from a flower of another plant belonging to a distant population
Explanation: Geitonogamy is the pollination taking place between the two flowers of the same plant or genetically similar plant.
Correct answer: Fertilization of a flower by the pollen from another flower of the same plant- A. Maize
- B. Castor
- C. Wheat
- D. Pea
Explanation: In majority of dicot seeds,including pea,the endosperm is consumed during seed development and the food is stored in cotyledons and other…
Correct answer: Pea- A. Gemmule
- B. Megaspore
- C. Meiocyte
- D. Conidia
Explanation: Gemmule and conidia are asexual propagules thus no meiosis takes place in them.
Correct answer: Meiocyte- A. No dependence on pollinators
- B. Vivipary
- C. Higher genetic variability
- D. More vigorous offspring
Explanation: Cleistogamy is the process of pollination and fertilization before the flower has opened.
Correct answer: No dependence on pollinators- A. Nucellus
- B. Ovule
- C. Embryo Sac
- D. Fruit
Explanation: In angiosperms, the body of the ovule consists of a mass of parenchymatous cells called nucellus, which is equivalent to megasporangium.
Correct answer: Ovule- A. Papaya
- B. Cucumber
- C. Castor
- D. Maize
Explanation: Papaya is dioecious i.e. male and female occur in a separate plant so that it prevents both autogamy and geitonogamy (methods of…
Correct answer: Papaya- A. Cuticle
- B. Sporopollenin
- C. Lignin
- D. Cellulose
Explanation: Sporopollenin is a major component of the tough outer (exine) walls of spores and pollen grains.
Correct answer: Sporopollenin- A. Onion-Bulb
- B. Ginger-Sucker
- C. Chlamydomonas-Conidia
- D. Yeast-Zoospores
Explanation: Yeast and other ascomycetes characteristically produce ascospores. Chlamydomonas is an alga and conidia are not found in algae.
Correct answer: Onion-Bulb- A. Commelina
- B. Zostera
- C. Salvia
- D. Figs
Explanation: plants such as Viola (common pansy), Oxalis, and Commelina produce two types of flowers chasmogamous flowers which are similar to flowers…
Correct answer: Commelina- A. Geitonogamy
- B. Xenogamy
- C. Chasmogamy
- D. Cleistogamy
Explanation: Cleistogamy is a type of autogamous pollination where a flower remains closed and self-pollinates without the need for external agents…
Correct answer: Cleistogamy- A. Root buds
- B. Flower buds
- C. Shoot buds
- D. Axillary buds
Explanation: The "eyes" of a potato tuber are actually small, dormant shoots or buds.
Correct answer: Axillary buds- A. Both are applicable to only dicot plants
- B. Both bypass the flowering phase
- C. Both occur round the year
- D. Both produce progeny identical to the parent
Explanation: Both vegetative reproduction and apomixis result in offspring that are genetically identical (clones) to the parent plant.
Correct answer: Both produce progeny identical to the parent- A. Synergids
- B. Maternal sporophytic tissue in ovule
- C. Antipodal cells
- D. Diploid egg
Explanation: Apomictic embryos in Citrus arise from maternal sporophytic tissue in the ovule.
Correct answer: Maternal sporophytic tissue in ovule- A. Xenogamy
- B. Geitonogamy
- C. Karyogamy
- D. Autogamy
Explanation: Geitonogamy is the transfer of pollen grains from the anther of one flower to the stigma of another flower on the same plant.
Correct answer: Geitonogamy- A. Small, brightly coloured, producing large number of pollen grains
- B. Small, producing large number of dry pollen grains
- C. Large producing abundant nectar and pollen
- D. Small, producing nectar and dry pollen
Explanation: Wind-pollinated flowers are typically small and produce a large quantity of dry pollen grains.
Correct answer: Small, producing large number of dry pollen grains- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation: A - offset of water hyacinth (Eichhornia) B - Antheridiophore of Marchantia C - Antipodals of the mature embryo sac D - Oogonium of Chara
Correct answer: Option C