About This Chapter
MTLE Life Science: Concepts and Principles of Heredity - Chapter Summary
Look to these text and video lessons if your MTLE Life Science testing session is approaching, and you need to brush up on your knowledge of heredity. In addition to reminding you of the differences between dominant and recessive traits, and explaining the process of genetic inheritance, the lessons will provide examples of co-dominance and incomplete dominance. Check out this chapter if you'd like to:
- Explore the process of sexual reproduction
- Define traits and review the different types
- Utilize a Punnett square
- Examine the statements of Mendel's Second Law
- Identify dominant traits
- Describe incomplete and co-dominance
- Differentiate between sex-linked and polygenic inheritance
These text and video lessons are designed to be studied at your own pace. Benefit from the knowledge of experienced educators, many of whom have multiple relevant degrees. Master the above concepts and principles in an effort to prepare for the MTLE Life Science examination. Written transcripts and worksheets are included. Lesson summaries highlight the main points of the videos, and the self-assessment quizzes can determine how much you've remembered.
1. Sexual Reproduction: Inheriting Genes from Each Parent
Organisms reproduce in order to make offspring. With sexual reproduction the offspring get a combination of the genetic material from two parents. Learn how the male and female reproductive cells, called gametes, come together during fertilization.
2. What is a Trait? - Definition, Types & Examples
This lesson introduces the concept of traits. In this lesson, learn about dominant and recessive traits, alleles and why some mice are white and others black. A quick summary and brief quiz follow the lesson.
3. Punnett Square: Definition & Example
This lesson will define what a Punnett square is and show several examples of how one can be used. It will also briefly describe patterns of inheritance.
4. Mendel's Second Law: The Law of Independent Assortment
Understanding how Mendel's law of independent assortment describes inheritance of genes is as easy as flipping a coin. Grab a few coins, cue up the video and see how.
5. Dominant Trait: Definition & Example
Can you roll the edges of your tongue towards the center? Do you have detached earlobes that hang free? Are your eyes brown? If you answered yes to any one of these, then you have a dominant trait. Learn what dominant traits are in this lesson.
6. Incomplete Dominance: Definition & Example
Dominant/recessive inheritance is a common topic in genetics. Incomplete dominance is a naturally occurring phenomenon that may be present during the expression of this type of inheritance. This article describes incomplete dominance and goes over examples found in nature.
7. Codominance: Definition & Example
There are numerous factors that play a role in determining how an organism will look and act. In this lesson, you will learn about a genetic situation known as codominance.
8. The Influence of Sex-Linked and Polygenic Inheritance on Development
What is sex-linked inheritance? What influence does it have on human development? What does it mean if a trait is polygenic? Learn the answers to these questions as this lesson explores this area of genetic inheritance.
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Other chapters within the MTLE Life Science: Practice & Study Guide course
- MTLE Life Science: Principles of Scientific Inquiry
- MTLE Life Science: Using Mathematics & Computers
- MTLE Life Science: Using Statistics
- MTLE Life Science: Teaching Reading Skills
- MTLE Life Science: Cellular Structures & Processes
- MTLE Life Science: Photosynthesis & Cellular Respiration
- MTLE Life Science: Function & Synthesis of Proteins
- MTLE Life Science: Mitosis & Meiosis
- MTLE Life Science: Gene Mutation & Expression
- MTLE Life Science: Gene Technology
- MTLE Life Science: Classification of Living Organisms
- MTLE Life Science: Structure & Function of Plants
- MTLE Life Science: Structure & Function of Mammals
- MTLE Life Science: Human Immune System
- MTLE Life Science: Adapting to the Environment
- MTLE Life Science: Genetic Variance & Phenotypic Influences
- MTLE Life Science: Evolutionary Relationship Between Species
- MTLE Life Science: Organisms & Their Environment
- MTLE Life Science: Population & Species Diversity
- MTLE Life Science: Matter & the Flow of Energy
- MTLE Life Science: Behavior of Organisms
- MTLE Life Science Flashcards