AP Biology
Cerveny
2015 - 2016
Lab Bench Investigation: Mitosis & Meiosis
Directions:
Review the process of mitosis and meiosis by completing the LabBench Activity Mitosis & Meiosis. To
complete the assignment go to the following website:
www.phschool.com/science/biology_place/labbench/lab3/intro.html
Once you have accessed the site complete: Key Concepts, Design of Experiments, Analysis of Results and
Lab Quiz by reading the information presented, watching the animations. For the meiosis section answer all
questions in your lab notebook. The questions are in italics.
Introduction:
Key Concepts I: Mitosis (read)
Concept 1: The Cell Cycle (read)
Closer Look: Nuclear Division (read)
Closer Look: Interphase (read)
Closer Look: Cytoplasmic Division (cytokinesis) (read)
Concept 2: Homologous Chromosomes (read)
#1
Explain what is meant by the statement, homologous chromosomes are similar but not identical?
Design of Experiment I (read)
Exercise 1:
Identifying the phases of Mitosis (read/complete). Select each dividing cell in the micrograph of
the whitefish blastula below to see an enlarged drawing of that stage. (Metaphase link does not work. Use the
side menu to view this information.)
Read these sections: Prophase
Interphase
Anaphase
Metaphase
Telophase
Exercise 2: Observing Mitosis in a living cell (read/animate)
Analysis of Results I – skip this section
Lab Quiz I – complete this section as directed
1
AP Biology
Cerveny
2015 - 2016
Key Concepts II: Meiosis (read)
Concept 1: Crossing Over (read)
#1
In what phase of meiosis would crossing over occur?
Design of Experiment II (read)
Closer Look: Spore formation in Sordaria (read)
Exercise 1:
Possible arrangements of ascospores (read)
Analysis of Results II – read and complete these questions in your lab notebook
#2
In the photo, how many asci marked with an X show no evidence of crossing over?
#3
In the photo, how many asci marked with an X show evidence of crossing over?
#4
In the photo, what is the total number of asci marked with an X?
#5
Based on the data from the photo, what is the percent of crossovers?
#6
For the sample shown here, what is the map distance between the gene for spore color and the
centromere?
Compare Mitosis and Meiosis – read and complete questions in your lab notebook
#7
In what cellular processes is mitosis involved? In what cellular processes is meiosis involved?
#8
In what type of cells does mitosis occur? In what type of cells does meiosis occur?
#9
How many times does DNA replicate in mitosis? How many times does DNA replicate in meiosis?
#10
How many cellular divisions occur in mitosis? How many cellular divisions occur in meiosis?
#11
How many daughter cells are formed by mitosis? How many daughter cells are formed by meiosis?
#12
What is the chromosome number in daughter cells formed mitosis from diploid parent cells? What is
the chromosome number in daughter cells formed by meiosis from diploid parent cells?
#13
In mitosis, are daughter cells identical to or different from parent cells? In meiosis are daughter cells
identical or different from parent cells?
#14
In mitosis, when do synapsis and crossing over occur? In meiosis, when do synapsis and crossing
over occur?
Lab Quiz II – Complete questions 1 - 6
2