1 / 9

Understanding Pedigrees in Human Genetics: Importance and Mapping Techniques

This warm-up exercise highlights the significance of pedigree charts in genetics, showcasing how they trace genetic traits across generations. Through this study, students will learn to create and interpret pedigrees, assisting them in identifying autosomal and sex-linked genes. The objective is to understand various chromosome mapping methods, including karyotyping, which reveals chromosomal structures and abnormalities. By the end of the lesson, students will appreciate how these tools aid in the analysis of human genetics.

hallie
Télécharger la présentation

Understanding Pedigrees in Human Genetics: Importance and Mapping Techniques

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. APBIO- Chpt 14C “Genetics &Pedigrees” Supplement Warm-Up: Describe the importance of pedigrees in the study of genetics.

  2. OBJECTIVES • (1) The student will be able to describe how to create and interpret a pedigree. • (2) The student will be able to identify and describe several methods for mapping human chromosomes.

  3. KEY CONCEPT: A combination of methods is used to study human genetics.

  4. Human Genetics & Pedigrees • A pedigree is a chart for tracing genes in a family. • Phenotypes are used to infer genotypes on a pedigree. • Autosomal genes show different patterns on a pedigree than sex-linked genes.

  5. Human Genetics & Pedigrees • If the phenotype is more common in males, the gene is likely sex-linked.

  6. REFLECTION • (1) Describe how to create and interpret a pedigree.

  7. Human Genetics & Pedigrees • Several methods help map human chromosomes. • A karyotype is a picture of all chromosomes in a cell.

  8. Human Genetics & Pedigrees • Karyotypes can show changes in chromosomes. • deletion of part of a chromosome or loss of a chromosome • large changes in chromosomes • extra chromosomes or duplication of part of a chromosome

  9. REFLECTION • (2) Identify and describe several methods for mapping human chromosomes.

More Related