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Chromosomes, genes, DNA ... What's what?
In human reproduction, the male sex cell and the female egg cell (or "ovum") each contribute half of the more than 50,000 genes needed to make a human being. During the creation of these cells, chromosomes (on which the genes are located) break and recombine, creating new genetic combinations. Then fertilization brings together just one sperm and one egg out of all the millions that exist. The more than 25,000 genes from each parent that finally combine to form a new person are a unique mix, to create an offspring that is "one of a kind".
In the activity pictured below, we examined how genes can produce the billions of unique individuals who live, and have lived, on the earth. |
Sarah, Kelsey, Anthony and Malcolm |
Jocelyn, Cooper, Aaron, Samantha and Ashkan |
Harry, Miki, Ryan and Maria |
They've almost figured it out! |
Michael and Adrian |
Lucas, Jane and Kevin consulting |
Matt, Jenn, Nadine and Philip |
Jennifer and Matt |
Oh! Now I get it! |
Christine and Margot.... Don't sneeze! |
The finished model! |
Wow! There are a lot of combinations! |
Two "gene - iuses" at work! |
Genetic Diversity Graphically Displayed |
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Montroyal Elementary 5310 Sonora Drive
North Vancouver, B.C.
V7R 3V8
Phone: 604.903.3650
Fax: 604.903.3651
Attendance: 604.903.3711
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