Neco Model Questions Vol1 2022 Biology Question 2

Practice practical question 2 from the 2022 Neco Model Questions Vol1 Biology examination. This question covers Cell Division .

Neco Model Questions Vol1 2022 Biology Practical
Topic: Cell Division
Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2022 • BIOLOGY • practical

You prepared a fresh root‑tip slide of onion (Allium cepa) stained with 1% aceto‑orcein and examined it under a microscope. From a single field of view you recorded the following numbers of cells in each stage of mitosis: - Prophase: 12 cells - Metaphase: 8 cells - Anaphase: 5 cells - Telophase: 5 cells A total of 200 cells (including interphase cells) were observed in the field. Answer the questions below:

Question Parts

( a )
Calculate the mitotic index for the observed field.
( b )
Explain what the mitotic index indicates about the growth activity of the onion root tip.

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This is Neco Model Questions Vol1 2022 Biology Question 2. It is one of the practical questions from the 2022 Neco Model Questions Vol1 Biology examination.

The question covers Cell Division .

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