Relationship between Heredity and Variation in reproducing Biological System
Storyboard Description
Name: Ashley Jeda P. Trongco
Reference: Hickman et.al (2008). Integrated Principles of Zoology. 14th Ed. McGraw Hill Companies Inc.
Storyboard Text
- At each level of the biological hierarchy, living forms reproduce to generate others like themselves.
- Reproduction Organisms reproduce, sexually or asexually to produce new organisms
- Reproduction at each level shows the phenomena of Heredity and Variation
- What is Heredity? - faithful transmission of traits from parents to offspring via genes.
- Heredity explains why offspring resemble, but not identical to their parents and it is a unifying biological principle.
- What is Variation? - production of differences among the traits of different individuals.
- Each gene can have several variants, called alleles, which code for the different variants of the trait.
- Organismal Reproduction demonstrates both Heredity and variation
- In a reproductive process, properties of descendants resemble those of their parents to varying degrees but usually are not identical to them.
- If Heredity were perfect, living systems would never change; if variation were uncontrolled by heredity, biological systems would lack the stability that allow them to persist through time.
- Interaction of Heredity and Variation in the reproductive process is the basis for organic revolution.
Over 30 Million Storyboards Created