Name: _______________________________
Date: ___________
AP Biology Lab 4: Meiosis
Report
WHAT
Topics: meiosis, gamete formation
Vocabulary: chiasma, chromatid, crossing over, diploid, gamete, haploid, homologous
chromosomes, reduction division, sex cell, tetrad
Expected results: Successful simulation of meiosis, including crossing over
Actual results: (same)
HOW
Ideal procedure: Use model chromosomes to show each step in meiosis.
Actual procedure: (same)
WHY
Explanation of results: All sexually-reproducing organisms must produce gametes that contain
an exact half set of genes; meiosis is the process that accomplishes that result. In addition,
chance rearrangements of chromosomes occur during prophase I. This “crossing over” creates
additional variation in offspring.
Explanation of process: Scientists often use models to learn about important processes.
CONCLUSIONS
Big ideas:
Connections: