MCQ ON Megasporogenesis for NEET

MCQ ON Megasporogenesis for NEET |MCQ ON Megasporogenesis for NEET Biology class 12th |MCQ Questions for class 12 Biology chapter 2, Megasporogenesis with answer | Check the below NCERT MCQ question for class 12 Biology chapter 2 based on Megasporogenesis with answers.

MCQ Questions for class 12 Biology with Answers were prepared based on the latest pattern. We have provided class 12 Biology MCQ questions on Megasporogenesis with answers to help students understand the concept very well.

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Megasporogenesis

Introduction:-

Megasporogenesis:- Megasporogenesis is the process in the life cycle of higher plants, particularly angiosperms (flowering plants) and gymnosperms (conifers and related plants), where a specialized cell within the ovule called a megasporocyte undergoes meiosis to produce haploid megaspores. These megaspores serve as the precursor cells that eventually give rise to the female gametophyte, which plays a crucial role in fertilization and seed formation.

The key steps in megasporogenesis include the division of the megasporocyte by meiosis, resulting in four haploid megaspores. Typically, three of these megaspores degenerate, and one survives to develop into the mature female gametophyte, also known as the embryo sac. The embryo sac contains the female gametes (egg cells) necessary for sexual reproduction in plants.

MCQ ON Megasporogenesis for NEET 

Here are 15 multiple-choice questions (MCQs) related to megasporogenesis (the process of megaspore formation) in plants, along with their answers:

1. What is megasporogenesis in plants?
a) Formation of microspores
b) Formation of seeds
c) Formation of megaspores
d) Formation of pollen grains
Answer: c) Formation of megaspores

2. In which part of the plant does megasporogenesis occur?
a) Anther
b) Ovary
c) Petal
d) Stem
Answer: b) Ovary

3. Megasporogenesis is a crucial step in the production of:
a) Leaves
b) Fruits
c) Pollen grains
d) Seeds
Answer: d) Seeds

4. What is the ploidy level of megaspore mother cells (MMC) before undergoing megasporogenesis?
a) Haploid (n)
b) Diploid (2n)
c) Tetraploid (4n)
d) Triploid (3n)
Answer: b) Diploid (2n)

5. During megasporogenesis, the MMC undergoes meiosis to produce:
a) Megasporocytes
b) Microspores
c) Embryos
d) Roots
Answer: a) Megasporocytes

6. Megasporogenesis leads to the formation of ___ megaspores from a single MMC.
a) One
b) Two
c) Four
d) Eight
Answer: b) Two

7. The megaspores produced during megasporogenesis are ___ in nature.
a) Diploid (2n)
b) Haploid (n)
c) Triploid (3n)
d) Tetraploid (4n)
Answer: b) Haploid (n)

8. After megasporogenesis, what process transforms the surviving megaspore into the female gametophyte?
a) Germination
b) Photosynthesis
c) Fertilization
d) Pollination
Answer: a) Germination

9. What is the role of the female gametophyte produced during megasporogenesis?
a) Producing pollen
b) Attracting pollinators
c) Fertilizing ovules
d) Producing female gametes
Answer: d) Producing female gametes

10. In which plant organ is megasporogenesis essential for sexual reproduction?
a) Leaves
b) Stem
c) Roots
d) Flowers
Answer: d) Flowers

11. During megasporogenesis, what is the chromosome number in the surviving megaspore?
a) Diploid (2n)
b) Haploid (n)
c) Triploid (3n)
d) Tetraploid (4n)
Answer: b) Haploid (n)

12. What is the final outcome of megasporogenesis?
a) Formation of seeds
b) Production of fruit
c) Development of seedlings
d) Generation of microspores
Answer: a) Formation of seeds

13. Which of the following is NOT a product of megasporogenesis?
a) Megasporocytes
b) Ovules
c) Pollen grains
d) Embryo sac
Answer: c) Pollen grains

14. The process of megasporogenesis is crucial for the ___ of flowering plants.
a) Vegetative growth
b) Asexual reproduction
c) Sexual reproduction
d) Formation of leaves
Answer: c) Sexual reproduction

15. Where do the surviving megaspores ultimately develop into female gametophytes?
a) In the ovule
b) On the stigma
c) In the anther
d) In the petal
Answer: a) In the ovule

Conclusion:-

MCQ ON Megasporogenesis for NEET |Which of the following is NOT a product of megasporogenesis? a)Megasporocytes, b) Ovules, c) Pollen grains, d) Embryo sac, Answer: c) Pollen grains