Arrange the following terms in the correct developmental sequence:

Q. Arrange the following terms in the correct developmental sequence:

Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes

Answer: 

Here’s the correct developmental sequence in pollen formation (microsporogenesis → microgametogenesis):

🌱 Correct Order:

1. Sporogenous tissue
2. Pollen mother cell (PMC)
3. Microspore tetrad
4. Pollen grain
5. Male gametes

 

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🔍 Simple Explanation:

• Sporogenous tissue → Diploid cells in the anther that give rise to PMCs
• Pollen mother cell → Undergoes meiosis
• Microspore tetrad → Four haploid microspores formed after meiosis
• Pollen grain → Each microspore develops into a pollen grain
• Male gametes → Formed inside the pollen grain (generative cell divides)

 

1. Name the parts of an angiosperm flower in which development of male and female gametophyte take place.

2. Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structures formed at the end of these two events.