Heredity (4:43)
A CHAPTER FROM: Life Science, the Basics: Continuation of Life
Genetic traits are passed from parent to offspring. Genes are responsible for a number of physical characteristics in humans and animals, and can be used to determine evolutionary changes in organisms. Scientists are endeavoring to learn more...
- 6-12Grades 6-12
Gregor Mendel's Rules of Heredity: Using Punnett... (5:04)
A CHAPTER FROM: Genes, Genetics, and DNA
According to Gregor Mendel’s Rules of Heredity, individuals carry two genes for each trait, but only pass one gene for each trait to each offspring. Of the two genes, one or both may be dominant or recessive. Punnett squares are used to figure...
- 6-8Grades 6-8
- Curriculum Explorer
Biologically Speaking: Genetics and Heredity (16:00)
In this program, teenage host, Elyse, explores the history of genetics, and explains how traits are passed from one generation to another. Dominant and recessive traits are described, as well as the differences between pure and hybrid traits....
- 6-8Grades 6-8
- Curriculum Explorer
Separated at Birth: Environment vs. Heredity... (3:00)
A CHAPTER FROM: The Mystery of Twins
Many identical twins are separated at birth and raised in different households.
- 6-8Grades 6-8
- Curriculum Explorer
Genes are Located on Chromosomes (4:22)
A SECTION FROM: Greatest Discoveries with Bill Nye: Genetics
Thomas Morgan, while working at Columbia, extensively studied the theory of heredity in fruit flies, or drosophila. What he observed led to the conclusion that genes were located on the chromosomes in the nuclei of cells and that some traits...
- 6-8Grades 6-8
Closed Captioning
Behavior (4:56)
A CHAPTER FROM: Life Science, the Basics: Continuation of Life
Behavioral traits are linked to both heredity and environment. Animals and humans are born with certain behavioral knowledge, while other behaviors are responses to environmental cues.
- 6-12Grades 6-12
Life Science, the Basics: Continuation of Life (15:04)
This program presents the basics of reproduction and heredity. Included are three segments on life cycles, heredity, and behavior.
- 6-12Grades 6-12
Your Genes: Your Future (54:00)
Today's scientists are making great strides in understanding how heredity affects our health and other aspects of our lives. Four segments address the role of genetics in modern medicine.
- 6-8Grades 6-8
- Curriculum Explorer
Make-up of DNA: Guanine, Cytosine, Adenine, Thymine (2:10)
A CHAPTER FROM: Biologically Speaking: Genetics and Heredity
The molecular basis of heredity involves DNA and its sequence of bases – guanine, cytosine, adenine, and thymine – which specify proteins to make and control life processes. Every cell in an organism contains the same genes. The difference...
- 6-8Grades 6-8
- Curriculum Explorer
Gregor Mendel's Genetic Theory: Experiments and... (2:19)
A CHAPTER FROM: Biologically Speaking: Genetics and Heredity
Genetics is the study of genes and how they affect heredity. Genes are genetic material on a chromosome that determines what traits an organism will have. Gregor Mendel developed the theory of how genes work, based on his work in Austria with...
- 6-8Grades 6-8
- Curriculum Explorer