Yeast Cell Cycle Analysis

Experiment Overview

A group of researchers conducted an experiment to observe the duration of yeast cell cycle stages under different nutrient conditions.

• Two environments were used:
  • Nutrient-rich environment.
  • Nutrient-poor environment.
• The duration of each cell cycle stage was measured in minutes.
• The results are summarized in Table 1.

Data Table

Table 1. Duration (in minutes) of yeast cell cycle phases in a nutrient-rich environment and a nutrient-poor environment

Question

The central question is:

• The cell cycle of yeast cells grown in the nutrient-poor environment is approximately what percent of the cell cycle of yeast cells grown in the nutrient-rich environment?

Calculations Needed

To answer the question, we need to perform some calculations.

1. Calculate the total duration of the cell cycle in the nutrient-rich environment:
   $23 + 48 + 20 + 5 = 96$

2. Calculate the total duration of the cell cycle in the nutrient-poor environment:
   $33 + 61 + 57 + 10 = 161$

3. Determine the percentage of the cell cycle duration in the nutrient-poor environment compared to the nutrient-rich environment:
   $\frac{161}{96} \times 100 \approx 168$

Answer Choices

The possible answer choices are:

• A) 168
• B) 127
• C) 179
• D) 160