MEIOSIS TEST REVIEW
1. DEFINE DIPLOID AND HAPLOID.
Diploid – 2 sets of chromosomes (a set from mom and a set from dad). Somatic cells are
diploid.
Haploid – 1 Set of chromosomes (a cell has either a mom or dad chromosome representing
each pair of homologues). Gametes are haploid cells.
2. LIST 4 TERMS THAT CAN BE USED IN PLACE OF EGG AND SPERM CELLS.
Gametes, Germ Cells, Reproductive Cells, Sex Cells
3. THE PRODUCTS OF MITOSIS ARE (2) GENETICALLY IDENTICAL DIPLOID CELLS. DESCRIBE THE
PRODUCTS OF MEIOSIS.
(4) Genetically Unique (different) haploid cells
4. CIRCLE THE DIAGRAM THAT REPRESENTS MEIOSIS. BOX THE DIAGRAM THAT REPRESENTS
MITOSIS.
5. HOW MANY CHROMOSOMES DOES A HUMAN SOMATIC CELL CONTAIN?
46 Chromosomes (23 chromosomes /1 set from mom; 23 chromosomes/1 set from
dad)
6. HOW MANY CHROMOSOMES DOES A HUMAN GAMETE CELL CONTAIN?
23 Chromosomes (either a maternal or a paternal chromosome from each of the 23
pairs of chromosomes)
7. ILLUSTRATE THE DIFFERENCE IN METAPHASE, METAPHASE 1 AND METPHASE 2.
METAPHASE
METAPHASE 1
METAPHASE 2
8. DESCRIBE THE MAJOR EVENT THAT OCCURS IN MEIOSIS 1 (PROPHASE 1) THAT DOES NOT
OCCUR IN MITOSIS.
Crossing Over
9. LIST 3 EVENTS THAT INCREASE GENETIC VARIATION AMONG OFFSPRING FROM SEXUAL
REPRODUCTION.
Crossing Over
Independent Assortment
Random Pairing of Gametes
10. WHICH PROCESS PRODUCES SOMATIC CELLS? WHICH PROCESS PRODUCES GAMETES?
Mitosis = Somatic Cells
Meiosis = Gametes
11. MUTATIONS OCCURING IN WHAT TYPE OF CELLS WOULD BE PASSED TO OFFSPRING?
Gametes (reproductive cells)
12. DESCRIBE AND DRAW HOMOLOGOUS CHROMOSOMES.
Homologous Chromosomes - Chromosomes that are the same size and shape with the
same type of genes, but not necessarily the same version (1 homologue comes from the
mom and the other homologue comes from the dad).
13. DESCRIBE AND DRAW SISTER CHROMATIDS.
Sister Chromatids – chromatids that have the exact same genetic information (the
products of DNA Replication).
14. CUT OUT YOUR 2 PAIRS OF HOMOLOGOUS CHROMOSOMES. WITH AT LEAST 2 PARTNERS,
CARRY OUT THE STAGES OF MITOSIS, MEIOSIS I, AND MEIOSIS II. INCLUDE AT LEAST 1
CROSSING OVER EVENT BETWEEN EACH PAIR OF HOMOLOGUES. CARRY OUT MEIOSIS I
ATLEAST 3 TIMES DEMONSTRATING HOW INDEPENDENT ASSORTMENT COULD RESULT IN
VARIED PRODUCT GAMETES.
a. YOUR CELLS DIPLOID # _________
YOUR CELLS HAPLOID # _________