Part One: All Chromosomes Are Folded and Matched

Part One: All chromosomes are folded and matched

1)How many chromosomes are in each bird’s cells? ______. Are these diploids or haploids?______

2)How many matched pairs of chromosomes are there in each cell? ______

3)How many unmatched chromosomes are there in each cell? ______

Part Two: Now unfold all the chromosomes

4)Unfolding the chromosomes symbolized what part of the cell cycle? ______

5)Do the genes on each matched pair of chromosomes match? ______

Part Three: Separate the chromosomes into two matching piles.

6)Which parts of the cell cycle is symbolized by separating the piles? ______

7)How many chromosomes are there now in each bird’s cells? ______Are these diploids or haploids?

Part Four: CUT THE CHROMSOMES ALONG DOTTED LINE! As you cut, make 4 separate piles

8)Which parts of the cell cycle is symbolized by cutting and separating the chromosomes? ______

9)How many chromosomes are found in the bird’s sex cells? ______

10)Do any of the chromosomes match one another in the new cells? ______

11)SO, are these diploid or haploid cells? ______

Analysis

In a complete sentence, explain two ways in which sex cells differ from all other cells.

Does this model represent a boy or a girl? Explain