Data Table

SPOONS ACTIVITY / SPOONS AND FORKS ACTIVITY / SPOONS, FORKS, AND KNIVES ACTIVITY
Chromosome Number Per Cell / Number of Cells / Chromosome Number Per Cell / Number of Cells / Chromosome Number Per Cell / Number of Cells
Beginning Body Cell / 2 / 1 / 4 / 1 / 6 / 1
Cell During Interphase / 4 / 1 / 8 / 1 / 12 / 1
Cells after 1st Meiotic Division / 2 / 2 / 4 / 2 / 6 / 2
Cells after 2nd Meiotic Division (Sex Cells) / 1 / 4 / 2 / 4 / 3 / 4

Answer the following questions after completing the data table.

1.  What cell organelles are represented by the plastic knives, forks, and spoons?

Chromosomes

2.  How many cells are produced from one cell in the testes that has completed meiosis 1 and 2?

4

3.  How is the chromosome number different between a body cell and a sex cell?

When comparing the chromosome number in a body cell to the chromosome number found in a sex cell, body cells have twice the number of chromosomes.

  1. Because this is true, body cells are considered to be____diploid______and sex cells are considered to be ___Haploid______. (choose diploid or haploid)

4.  During meiosis, eggs or sperm are made. These sex cells can also be called ___gametes______.

5.  Name the organ where meiosis takes place in a human male?__testes______

A female?___ovaries______

6.  If there was an animal with 84 chromosomes in each body cell, how many chromosomes would the animal have in each sex cell? _42______

7.  If an animal had 16 chromosomes in each egg cell, how many chromosomes would be in each body cell? _____32______

8.  Name Mendel’s Law that is represented by the separation of chromosomes during meiosis. ___Law of Segregation______

Extension Questions -

1.  What might happen if one pair of chromosomes failed to separate during meiosis? How would this affect the egg or sperm? How might this affect the baby?

The egg or sperm would have either one extra chromosome or one less chromosome. If this egg or sperm is used to create a baby, then the baby would have either 45 chromosomes in each body cell or 47 chromosomes in each body cell.