Kalyan

Manish Rahatekar replied | 2 days ago

Some of the books I find particularly useful while teaching spoken English are:

1. Habit of Winning — Prakash Iyer
2. The Secret of Leadership — Prakash Iyer

I particularly like these books because they use simple, easy-to-understand English and short, engaging stories. This makes them useful for learners who are trying to improve not only their vocabulary and comprehension, but also their confidence in using English.

I often use stories and discussions from such books to encourage students to read aloud, express their opinions, summarize a story and speak about their experiences. This turns reading material into an opportunity for practical speaking practice.

For spoken English, I believe that regular speaking practice is more important than simply studying grammar or vocabulary.

Hope this helps!

Anirban Mukhopadhyay replied | 2 days ago

Mass Spoken English book

Saurabh replied | 4 days ago

a) Chromosomes in a pollen mother cell
A pollen mother cell (PMC) is diploid (2n).= 24 Chromosome 

b)Chromosomes in each microspore after meiosis

Meiosis reduces the chromosome number to haploid (n). = 12 Chromosome 

c) Meiotic divisions required to produce 100 pollen grains

One pollen mother cell undergoes one meiosis and produces 4 microspores.

Number of PMCs required:

Each PMC undergoes one meiotic division.

Answer: 25

d) Total mitotic divisions for 100 mature male gametophytes

Each microspore undergoes:

1st mitotic division → vegetative cell + generative cell

2nd mitotic division of generative cell → 2 male gametes

So, 2 mitotic divisions per microspore.

For 100 microspores:

100×2= 200mitotic division 

Pawan Agarwal replied | 3 days ago

A flowering plant has $2n=24$ chromosomes. So, $n=12$.

a) Chromosomes in a pollen mother cell (PMC):

• A pollen mother cell is diploid.

• Hence, it will have $2n=24$ chromosomes. Answer: 24

b) Chromosomes in each microspore after meiosis:

• Meiosis reduces chromosome number to half.

• Each microspore will have $n=12$ chromosomes. Answer: 12

c) Number of meiotic divisions to produce 100 pollen grains:

• Each pollen mother cell undergoes meiosis → produces 4 microspores (pollen grains).

• To produce 100 pollen grains:

Answer: 25

d) Total mitotic divisions for 100 mature male gametophytes:

• Each microspore undergoes 1 mitotic division → forms vegetative cell + generative cell.

• Generative cell undergoes 1 more mitotic division → forms 2 male gametes.

• So, each microspore requires 2 mitotic divisions in total.

• For 100 microspores (pollen grains):

Answer: 200

Yagnesh replied | 4 days ago

Please don't feel that you have to start learning English all over again. You already have years of experience studying and teaching it. After being away from work for 12 years, it is natural to feel a little rusty and lose confidence.

Start slowly. Spend 15–20 minutes every day revising basic grammar and another 15 minutes speaking in English about your daily life. Read a little, listen to English conversations, and try explaining simple grammar topics aloud as if you are teaching a student.

Don't worry about making mistakes. With regular practice, your confidence will gradually come back. You already have the foundation—you just need to bring it back through practice.