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Worksheet
Curated OER

Gene Expression DNA to RNA to Protein to Trait

For Students 9th - 12th
There are six boxes on this genetics worksheet. In one, learners draw and label the DNA molecule. In another, they compare pre-mRNA to mRNA. Other boxes require definitions, labeling, and explaining relationships. 
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Lesson Plan
Curated OER

investigating and Modeling Sea Urchin Fertilization and Development

For Teachers 9th - 12th
Students begin by using clay to model fertilization and early development of sea urchins and chordates. They move on to mixing live sea urchin sperm and ova together to observe, diagram and record events occurring in fertilization and...
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Handout
Sophia Learning

Sophia: Fertilization and Early Development

For Students 9th - 10th
This lesson will explain the processes involved in fertilization of a female egg. It is 5 of 5 in the series titled "Fertilization."