Calculate the total number of meiotic division required to produce 56 pollen grains.

Options

A. 55
B. 14
C. 28
D. 52

Answer

To solve the problem of calculating the total number of meiotic divisions required to produce 56 pollen grains, we can follow these steps:

### Step 1: Understand the process of meiosis
Meiosis is a type of cell division that reduces the chromosome number by half, resulting in the formation of gametes. In the case of pollen grains, one pollen mother cell (microspore mother cell) undergoes meiosis to produce four pollen grains.

**Hint:** Remember that meiosis results in four products from one parent cell.

### Step 2: Determine how many pollen grains are produced from one meiotic division
From one meiotic division of a pollen mother cell, four pollen grains are produced. This means that for every meiotic division, we get four pollen grains.

**Hint:** Keep in mind the ratio of meiotic divisions to the number of pollen grains produced.

### Step 3: Set up the equation to find the number of meiotic divisions needed
To find out how many meiotic divisions are needed to produce 56 pollen grains, we can set up the following equation:

Number of meiotic divisions = Total pollen grains produced / Pollen grains per meiotic division

Substituting the known values:

Number of meiotic divisions = 56 pollen grains / 4 pollen grains per meiotic division

**Hint:** Think about how many groups of four can fit into 56.

### Step 4: Perform the calculation
Now, we perform the calculation:

Number of meiotic divisions = 56 / 4 = 14

**Hint:** Division will give you the total number of meiotic divisions required.

### Step 5: Conclusion
Therefore, the total number of meiotic divisions required to produce 56 pollen grains is 14.

**Final Answer:** 14 meiotic divisions.