Name____________________________________________________________Date ______
Meiosis Worksheet
Identifying Processes On the lines provided, determine which different stage of meiosis I and
meiosis II is being described, including interphase (which is NOT part of Meiosis).
1. _____________
homologous chromosome line up in the center of the cell
2.______________
spindle fibers pull homologous pairs to ends of the cell
3. ______________
4 haploid (N) daughter cells form
4. _____________
cells undergo a round of DNA replication
5.______________
sister chromatids separate from each other
6. _____________
2 haploid (N) daughter cells form
7.______________
spindle fibers attach to the homologous chromosome pairs
8. _____________
individual chromatids move to each end of the cell
9.______________
crossing-over (if any) occurs
Short Answer
10. Compare the number and type of cells that result from meiosis vs. mitosis.
11. How do the genetic contents of cells resulting from mitosis and meiosis differ?
12. Comparing and Contrasting Describe ONE similarity and ONE difference between
meiosis I and meiosis II.
13 Applying Concepts If a diploid cell containing 28 chromosomes undergoes meiosis, how
many chromosomes will each daughter cell have?
14 Compare and Contrast: Describe 2 way mitosis and meiosis similar and 2 ways they are
different?
Read each statement. On the line provided, write down the phrase of Mitosis or Meiosis in
which the action occurs. IF the action occurs in both, write BOTH AND THE PHASE IN
WHICH IT HAPPENS IN BOTH. The first one is done for you
1. metaphase I :meiosis
2 ________________________________________
3.________________________________________
homologous chromosome line up in the
center of the cell
Synapsis occurs.
4.
_______________________________________
spindle fibers pull homologous pairs to
ends of the cell
4 haploid (N) daughter cells form
5.
_______________________________________
cells undergo a round of DNA replication
6.
_______________________________________
7.
_______________________________________
The chromosomes line up across the
middle of the cell.
Chromosomes become visible.
8.________________________________________
9.
_______________________________________
10.
______________________________________
11.
______________________________________
12. _______________________________________
sister chromatids separate from each
other
2 haploid (N) daughter cells form
Sister chromatids separate into individual
chromosomes.
Nuclear envelope re-forms.
spindle fibers attach to the homologous
chromosome pairs
sister chromatids move to each end
of the cell, now known as “chromosomes”
13.
______________________________________
14.
______________________________________
Independent assortment occurs
15.
______________________________________
Each chromosome is connected to a
spindle fiber.
crossing-over occurs
16. _______________________________________
Identify the parts of this structure:
17. ____ Crossing-Over
18. ___ ___ Homologous
Chromosomes
19. ____ ____ Sister Chromatids
20. ____ Centromere
Phases of Meiosis Labeling
Name of Phase
1.
Description
Homologous chromosomes pair up(=synapsis) and form tetrad
2.
Spindle fibers move homologous chromosomes to opposite sides
3.
4.
Nuclear membrane reforms, cytoplasm divides, 4 daughter cells
formed at the end
Chromosomes line up along equator, not in homologous pairs
5.
Crossing-over occurs
6.
Chromatids separate
7.
Homologues line up along equator
8.
Cytoplasm divides, 2 daughter cells are formed
IDENTIFY THE PHASES OF MEIOSIS: