1. Chromosomes and Meiosis Vocabulary
Biology 12

2. Hahahah…

3. What is meiosis? A special type of cell division.
Only occurs in sex cells reproductive organs (humans: ovaries/testes)
Produces sex cells (egg and sperm)
Reduces the number of chromosomes in the nucleus (reduction division)

4. Chromosomes:
All body cells (except egg and sperm) contain pairs of chromosomes called homologous chromosomes or homologues
One member of each pair originally come from each parent (egg and sperm)
Homologues contain DNA that
codes for the same genes

5. Number of chromosomes:
Diploid organism: two sets of chromosomes ( one from each parent) 2n
Somatic cells
Haploid organism: one set of chromosomes n
Sex cells

6. What is the diploid number of corn? The haploid number of a chimp?

7. How many PAIRS of chromosomes do humans have?

8. Is the chromosome number related to the complexity of the organism?

9. Humans: Diploid =46 Haploid = 23 Zygote (fertilized egg) = 2n = 46
Female gamete = egg = n = 23
Male gamete = sperm = n = 23
Zygote (fertilized egg) = 2n = 46

10. Use your textbook to find definitions for the following meiosis vocabulary:
Page , glossary and index will be helpful 
Include an example and/or a diagram if appropriate
Tetrad
Zygote
Gametes
Fertilization
Meiosis
Synapsis
Somatic cell
Diploid
haploid