Below is an image of a preparation of garlic root tip. There are 38 cells in the field of view.

Calculate the mitotic index for this tissue sample and select the correct answer from the options below.

Question

Below is an image of a preparation of garlic root tip. There are 38 cells in the field of view.

Calculate the mitotic index for this tissue sample and select the correct answer from the options below.

BlackTom AI · Accepted Answer

First, determine what the mitotic index represents: it is the fraction of cells undergoing mitosis in a given field, calculated as (number of mitotic cells) / (total number of cells observed).

From the image, there are 38 cells in the field of view, so the denominator is 38.

Next, count how many cells are in mitosis. In this sample, 5 cells appear to be in mitotic stages (visible condensed chromosomes typical of mitosis).

Now compute the mitotic index: 5 mitotic cells ÷ 38 total cells = 5/38 ≈ 0.1316.

Rounding to three significant figures gives 0.132.

Evaluating the other options:
- 0.053 would correspond to about 2 mitotic cells (0.053 × 38 ≈ 2), which does not match the observed count of 5.
- 0.079 would correspond to about 3 mitotic cells (0.079 × 38 ≈ 3), again not matching the observed 5.
- 5 as a standalone value would be the absolute count, not a ratio or index; mitotic index is a fraction, not a raw count, so this is not appropriate.

Thus, the value 0.132 accurately reflects the mitotic index calculated from 5 mitotic cells out of 38 total cells.

AGRI10051_2025_SM2 Practical 1 Post-prac Test

Below is an image of a preparation of garlic root tip. There are 38 cells in the field of view. Calculate the mitotic index for this tissue sample and select the correct answer from the options below.

View Explanation

Log in for full answers

Similar Questions

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

The CVP and break-even analysis are supported by a range of important assumptions. Which of the following is not an assumption of the CVP:

The break-even point is that at which:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler