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 17 of 61
- A. Coleoptile
- B. Coleorrhiza
- C. Cotyledon
- D. Scutellum
Explanation: The coleorrhiza or root sheath is a protective layer of tissue that surrounds the radicle in monocotyledon seeds.
Correct answer: Coleorrhiza- A. Coleoptile
- B. Coleorrhiza
- C. Cotyledon
- D. Scutellum
Explanation: The Scutellum is part of the structure of a barley and rice seed-the modified seed leaf.
Correct answer: Scutellum- A. Inflorescence
- B. Phosphorescence
- C. Luminescence
- D. Senescence
Explanation: An inflorescence is a cluster of flowers arranged on the main stem axis or peduncle of a plant.
Correct answer: Inflorescence- A. Corymb
- B. Umbel
- C. Raceme
- D. Spike
Explanation: A spike is a raceme except that the flowers are attached directly to the axis at the axil of each leaf rather than to a pedicel.
Correct answer: Spike- A. Racemose
- B. Cymose
- C. Dichasial cyme
- D. Scorpioid cyme
Explanation: The type of inflorescence where flowers develop in acropetal succession is the "Scorpioid cyme." In a Scorpioid cyme, the youngest flower…
Correct answer: Scorpioid cyme- A. Racemose
- B. Cymose
- C. Capitulum
- D. Spadix
Explanation: A spadix is a spike of flowers densely arranged around it, enclosed or accompanied by a highly specialised bract called a spathe.
Correct answer: Spadix- A. Corymb
- B. Umbel
- C. Raceme
- D. Spike
Explanation: In botany, an umbel is an inflorescence that consists of a number of short flower stalks (called pedicels) that spread from a common…
Correct answer: Umbel- A. Helicoid cyme
- B. Scorpioid cyme
- C. Dichasial cyme
- D. None of these
Explanation: Halicoid cyme is an inflorescence, or cyme, in which each flowering branch gives rise to one lateral branch that is coiled snail-like and…
Correct answer: Helicoid cyme329. A type of uniparous cyme in which succeeding branches are produced on alternate sides is termed as:
- A. Helicoid cyme
- B. Scorpioid cyme
- C. Dichasial cyme
- D. None of these
Explanation: It is a monochasial cyme in which one lateral branch arises from base of the terminal flower. It has a curved axis.
Correct answer: Scorpioid cyme- A. Corymb
- B. Capitulum
- C. Spadix
- D. Spike
Explanation: Corymb is a botanical term for an inflorescence with the flowers growing in such a fashion that the outermost are borne on longer pedicels…
Correct answer: Corymb- A. Water
- B. Suitable temperature
- C. Both (A) and (B)
- D. None of these
Explanation: The plant growth rate is affected by a number of factors both internal and external External factors are temperature, light, oxygen…
Correct answer: Both (A) and (B)- A. Parthenogenesis
- B. Parthenocarpy
- C. Viviparous germination
- D. Apomixis
Explanation: In some cases, fruit development proceeds without fertilization, and thus no seed formation takes place e.g.
Correct answer: Parthenocarpy- A. Exine part
- B. Intine part
- C. Tube nucleus and generative nucleus
- D. All (A), (B) and (C)
Explanation: The pollen grain's intine and exine collaboratively provide structural integrity and protection.
Correct answer: All (A), (B) and (C)- A. Epicotyl
- B. Hypocotyl
- C. Cotyledon
- D. All (A), (B) and (C)
Explanation: The epicotyl is the portion of the embryo above the cotyledons. In hypogeal germination, the epicotyl grows above the soil surface.
Correct answer: Epicotyl- A. Epicotyl
- B. Hypocotyl
- C. Cotyledon
- D. All (A), (B) and (C)
Explanation: Epigeal germination takes place due to the rapid growth of the hypocotyl.
Correct answer: Hypocotyl- A. Epigeal germination
- B. Hypogeal germination
- C. Viviparous germination
- D. All choices are correct
Explanation: The special type of reproduction in which a seed starts germinating inside the fruit is Viviparous germination.
Correct answer: Viviparous germination- A. Radicle
- B. Plumule
- C. Cotyledon
- D. Epicotyl
Explanation: The radicle is the embryonic root of a plant. It is the first organ to emerge during germination, and its primary function is to anchor…
Correct answer: Radicle- A. Parthenocarpy
- B. Parthenogenesis
- C. Apomixis
- D. Vernalization
Explanation: Vernalization is a biological process in plants where exposure to a period of low temperatures induces or accelerates flowering.
Correct answer: Vernalization339. Spinach is:
- A. Long-day plant
- B. Short-day plant
- C. Day-neutral plant
- D. None of these
Explanation: Day-neutral plants are not significantly influenced by day length for flowering.
Correct answer: Long-day plant- A. P307
- B. P370
- C. P703
- D. P700
Explanation: There are two photosystems, photosystem I (PS I) and photosystem II (PS II). These are named so in order of their discovery.
Correct answer: P700