Grade 7 Life Science students explore how both asexual and sexual reproduction depend on cell division, examining specific methods such as binary fission in prokaryotes, mitosis and cytokinesis in single-celled eukaryotes, budding in organisms like hydras and yeast, and regeneration. The lesson explains how asexual reproduction produces offspring that are genetically identical to the single parent, and compares this process across unicellular and multicellular organisms. Part of Chapter 3 on Cell Division, this lesson builds on students' prior knowledge of mitosis to connect cell-level processes to organism-level reproduction.
Section 1
Cells Divide to Create New Organisms
Asexual reproduction involves one parent producing genetically identical offspring through processes like binary fission, budding, or regeneration. Cell division is the key process behind this type of reproduction.
Section 2
Sexual Reproduction Combines Genetic Material
Unlike asexual reproduction, sexual reproduction requires two parents who contribute genetic material to create offspring with unique traits. This process increases genetic diversity but reproduces more slowly.
Section 3
Organisms Grow Through Controlled Cell Division
Cell division follows a cycle with two main phases: interphase (when cells grow and prepare) and mitosis (when chromosomes separate). This process creates identical daughter cells for growth and repair.
Section 4
Bacteria Multiply Rapidly Through Binary Fission
Unicellular organisms reproduce through binary fission, splitting into two identical cells. Their short generation times allow exponential population growth, explaining how infections can develop quickly in humans.
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Section 1
Cells Divide to Create New Organisms
Asexual reproduction involves one parent producing genetically identical offspring through processes like binary fission, budding, or regeneration. Cell division is the key process behind this type of reproduction.
Section 2
Sexual Reproduction Combines Genetic Material
Unlike asexual reproduction, sexual reproduction requires two parents who contribute genetic material to create offspring with unique traits. This process increases genetic diversity but reproduces more slowly.
Section 3
Organisms Grow Through Controlled Cell Division
Cell division follows a cycle with two main phases: interphase (when cells grow and prepare) and mitosis (when chromosomes separate). This process creates identical daughter cells for growth and repair.
Section 4
Bacteria Multiply Rapidly Through Binary Fission
Unicellular organisms reproduce through binary fission, splitting into two identical cells. Their short generation times allow exponential population growth, explaining how infections can develop quickly in humans.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter