Child Development
Genetic Structures and Cell Division
Announcements
If you are absent, you can get your classwork from http://omhsbsavage.hcpss.wikispaces.net
Hand Outs
Diagram from book
Meiosis/Mitosis diagram
Genetics Vocabulary
Genetics Crossword Puzzle
Objectives:
Define gene, chromosome, nucleotide, and human genome.
Define the role of mitosis and meiosis in cell reproduction.
Define how meiosis contributes to genetic diversity.
Warm up
Do all of the cells in your body have the same genetic make up? Provide an explanation if your answer is
no.
I.
Label the Diagram from book with the terms gene, chromosome, nucleotide, and nucleus.
II.
Make a prediction. Which species has more chromosomes? Shrimp, goldfish, humans, guinea
pigs. (circle one)
III.
View United Streaming Video The Elements of Biology. Respond to the following questions:
1. How many pairs of chromosomes in humans? ___________
2. The entire set of genes is the human genome. _____________ genes make up the human
genome.
3. What types of cells reproduce via mitosis?
4. Explain what happens during mitosis. (you do not have to explain each of the 5 substages)
 What types of cells reproduce via meiosis?
 Explain what happens in meiosis. (include the term “crossing over”)
 How does meiosis contribute to genetic diversity?
 Explain what happens during fertilization.
Closing Activity:
Something I learned today …
Something that I still don’t understand …
Something that I am wondering about …
Homework
Complete Genetics Crossword Puzzle.