Neco Model Questions Vol1 2019 Biology Question 2

Practice essay / theory question 2 from the 2019 Neco Model Questions Vol1 Biology examination. This question covers cell division, mitosis, meiosis .

Neco Model Questions Vol1 2019 Biology Essay / Theory
Topics: cell division mitosis meiosis
Question 2 NECO_MODEL_QUESTIONS_VOL1 • 2019 • BIOLOGY • essay
Neco Model Questions Vol1 2019 Biology Question 2 diagram

The diagram is a labelled illustration of a typical eukaryotic somatic cell undergoing cell division. The stages are numbered (i) to (v) and show the cell membrane, nucleus (where present), chromosomes, spindle fibres and the cleavage furrow.

Question Parts

( a )
Identify the stage marked (i) in the diagram and describe two key events that occur during this stage.
( b )
Using a table, compare the chromosome number and genetic composition of the daughter cells produced at the end of (i) mitosis with those produced at the end of meiosis II in a diploid organism (2n = 28).
( c )
A plant tissue culture is initiated with a single diploid cell (2n = 28). After several cycles of cell division, a sample is observed to contain cells with 56 chromosomes. Explain how this increase could have occurred, indicating which type(s) of cell division could be responsible and why.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Neco Model Questions Vol1 2019 Biology Question 2. It is one of the essay questions from the 2019 Neco Model Questions Vol1 Biology examination.

The question covers cell division, mitosis, meiosis .

View More Neco Model Questions Vol1 2019 Biology Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support