1 / 7

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

Explore the complex nature of human genetics and learn about the methods used to study them. Discover the basics of inheritance, including single-gene traits and sex-linked disorders. Understand how pedigrees are used to trace genes in families and how different patterns can indicate autosomal or sex-linked genes. Dive into chromosome mapping techniques, such as karyotyping, to identify changes or abnormalities in chromosomes.

delossantos
Download Presentation

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

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

  2. Human genetics follows the patterns seen in other organisms. • The basic principles of genetics are the same in all sexually reproducing organisms. • Inheritance of many humantraits is complex. • Single-gene traits areimportant in understandinghuman genetics.

  3. Y X Females can carry sex-linked genetic disorders. • Males (XY) express all of their sex linked genes. • Expression of the disorder depends on which parent carries the allele and the sex of the child.

  4. 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. If the phenotype is more common in males, the gene is likely sex-linked.

  6. X Y Several methods help map human chromosomes. • A karyotype is a picture of all chromosomes in a cell.

  7. 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

More Related