A. DNA stores and transmits genetic information. Genes are sets of instructions encoded in the structure of DNA.
B. Genetic information is passed from generation to generation by DNA in all organisms and accounts for similarities in related individuals.
C. Manipulation of DNA in organisms has led to commercial production of biological molecules on a large scale and genetically modified organisms.
D. Reproduction is characteristic of living things and is essential for the survival of species.
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Original Student Tutorials Science - Grades 9-12
Explore the process of human development leading up to birth, and identify major changes associated with each trimester of pregnancy.
This interactive tutorial is part 2 in a two-part series. Click here to launch .
Explore the genetic advantage of sexual reproduction, describe the basic anatomy and physiology of both the male and female human reproductive systems, describe the process of human development leading up to birth, and identify major changes associated with each trimester of pregnancy.
This interactive tutorial is part 1 in a two-part series. Click here to
Student Resources
Original Student Tutorials
Explore the genetic advantage of sexual reproduction, describe the basic anatomy and physiology of both the male and female human reproductive systems, describe the process of human development leading up to birth, and identify major changes associated with each trimester of pregnancy.
This interactive tutorial is part 1 in a two-part series. Click here to
Type: Original Student Tutorial
Explore the process of human development leading up to birth, and identify major changes associated with each trimester of pregnancy.
This interactive tutorial is part 2 in a two-part series. Click here to launch .
Type: Original Student Tutorial
Tutorials
This Khan Academy video describes what happens to a zygote as it becomes an embyro. It further explains what a stem cell is and discusses why there are questions concerning the use of stem cells.
Type: Tutorial
This tutorial will help you to understand the function of the follicle. Each follicle is a single egg cell surrounded by several layers of follicle cells. An ovary consists of many follicles. The follicle cells protect and nourish the egg prior to its release into the oviducts during ovulation.
Type: Tutorial
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This video presentation shows how the fetal brain grows during pregnancy, both in terms of its size and the number of neurons.
Type: Video/Audio/Animation