About This Chapter
Chromosomes & Chromosome Disorders - Chapter Summary
In this chapter, you'll review chromosome types and components as well as the causes of chromosome disorders. Details are presented through definitions, illustrations and examples to make this material accessible and easily retained. Once you have completed your review of this short chapter, you should have developed the ability to do the following:
- Relate the structure of chromosomes
- Describe autosomes and what they do
- Identify sex-linked genes
- Understand details about homologous chromosomes
- Define karyotype and explain what a karyotype analysis does
Our expert biology instructors guide you through this material using simple terms and detailed explanations. You can easily track your progress using your Dashboard. Watch video lessons as many times as you'd like, and print the lesson transcripts to use as reference guides. Take the self-assessment quizzes to measure how much you have learned and discover which topics, if any, you need to continue reviewing.
1. How is DNA Organized into Chromosomes? - Structure & Function
Explore the structure of chromosomes and see how DNA fits inside the nucleus of the cell. In this lesson, you'll learn about histones, chromatin and nucleosomes.
2. Autosomes: Definition & Concept
An autosome is any chromosome that is not a sex-determining chromosome, so most chromosomes are autosomes. You can learn more about human autosomes in this lesson.
3. Sex-Linked Traits on the X and Y Chromosomes
The sex chromosome you inherit from your parents determines whether you are male or female. But many genes are carried on these chromosomes as well, and the inheritance of this genetic information works a bit differently.
4. Homologous Chromosomes: Definition, Pairing & Separation
This lesson explains the concept of homologous chromosomes. It includes key vocabulary, illustrations, and explanations. It also addresses the process of chromosome separation. A brief quiz is also included.
5. Karyotype: Definition, Disorders & Analysis
Some people with chromosomal disorders may have too many or too few chromosomes in their cells. A karyotype analysis can be used to look at the number and appearance of chromosomes in individuals. Keep reading to learn more.
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Other chapters within the VCE Biology: Exam Prep & Study Guide course
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- Immunity & the Immune System
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- Biodiversity Over Time
- Relatedness Between Species
- Human Evolution
- DNA Manipulation
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