Reproduction
Throughout this unit there will be an opportunity to explore and connect the fields of cell biology, molecular genetics, developmental biology, and biotechnology. Students learn how the cell produces the proteins found in the messages of genes. Students also learn how a fertilized egg reproduces, develops, and differentiates in response to gene messages. Current research in molecular genetics, biotechnology, and reproductive technology is presented throughout the unit.
Salmon in the wild lay big eggs stored with energy,and the offspring have a high survival rate after they hatch. Studies have shown that female chinook salmon raised in captive breeding programs lay many more eggs than wild chinook salmon.The eggs of captive females,however,are 25 percent smaller.Smaller eggs are less likely to survive in the wild and may eventually harm the survival of wild salmon populations into which captive females are reintroduced.Scientists are continuing to research the impact of human-controlled reproduction to ensure the survival of wild salmon populations.
There will be three areas of focus throughout this unit:
As always, these lessons are not meant to be completed in isolation. Throughout the lessons you are encouraged to discuss with your peers in face-to-face discussions, sharing ideas within Google Documents, and through a variety of other methods. This will allow myself and your fellow classmates to help you and others get through any roadblocks. You are also encouraged to reach out to others that you can discuss with and that you can learn from.
Salmon in the wild lay big eggs stored with energy,and the offspring have a high survival rate after they hatch. Studies have shown that female chinook salmon raised in captive breeding programs lay many more eggs than wild chinook salmon.The eggs of captive females,however,are 25 percent smaller.Smaller eggs are less likely to survive in the wild and may eventually harm the survival of wild salmon populations into which captive females are reintroduced.Scientists are continuing to research the impact of human-controlled reproduction to ensure the survival of wild salmon populations.
There will be three areas of focus throughout this unit:
- The Nucleus Controls the Functions of Life: This begins by reviewing the parts of a cell and provides a framework to understand how the nucleus controls the functions of life
- Mitosis is the Basis of Asexual Reproduction: The concept of the nucleus controlling cell activities through the production of proteins is carried into this section. Students are introduced to the concept that the cell cycle, or life of a cell, is controlled by checkpoint proteins
- Meiosis is the Basis of Sexual Reproduction: This section focuses on sexual reproduction. Students learn that new characteristics beneficial to the survival of the species may emerge through the introduction of new gene combinations, and therefore new proteins, in meiosis.
As always, these lessons are not meant to be completed in isolation. Throughout the lessons you are encouraged to discuss with your peers in face-to-face discussions, sharing ideas within Google Documents, and through a variety of other methods. This will allow myself and your fellow classmates to help you and others get through any roadblocks. You are also encouraged to reach out to others that you can discuss with and that you can learn from.