Mader, Biology © 2016, 12e (Reinforced Binding) AP Focus Review Guide (AP BIOLOGY MADER)
Mader, Biology © 2016, 12e (Reinforced Binding) AP Focus Review Guide (AP BIOLOGY MADER)
1st Edition
ISBN: 9780076721528
Author: McGraw-Hill Education
Publisher: MCGRAW-HILL HIGHER EDUCATION
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Chapter 11, Problem 1NS.1QC

How may a pedigree pattern be used to determine if a disease is autosomal dominant or autosomal recessive?

Expert Solution & Answer
Check Mark
Summary Introduction

To determine:

How pedigree pattern can be used to determine whether a disease is autosomal dominant or autosomal recessive.

Introduction:

Pedigree determines the biological relationship between an individual with their family or ancestors by using the standard symbols. The pedigree is important to predict as it helps in determining the dominant or recessive inheritance pattern of the traits and the genetic disorders related to it.

Explanation of Solution

Pedigree analysis theoretically determine about the transmission pattern of a genetic disease from one generation to the other. A disorder could be in autosomal dominant, autosomal recessive and X linked dominant or recessive conditions.

The characteristics of autosomal dominant traits are:

• The one affected parent can produce affected progeny. In autosomal dominant inheritance, the trait will occur in every generation.

• The affected number of male and females are roughly equal.

• In autosomal dominant the expression of a trait does not depend on the gender of an individual.

• Each affected parent may not produce affected offspring as they could be carrier of the dominant disorder.

• The probability of inheriting the disease by each offspring from both affected parents is 0.5.

The characteristics of autosomal recessive traits are:

• In autosomal recessive, the trait will not occur in every generation.

• The affected number of male and female are not equal.

• Both normal parents could produce affected offspring as they could be carrier of the affected allele.

• The probability of inheritance of disease by one out of every four offspring is 0.25.

With the help of above characteristic, it is easy to use pedigree analysis used to determine whether a disease is autosomal dominant or autosomal recessive.

Conclusion

Depending upon the characteristics of dominant and recessive disorders, the transmission of a disorder could be predicted through pedigree.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
How can you tell if a pedigree is autosomal dominant or recessive?
What is the most common autosomal recessive disease?
What are Autosomal Dominant and Autosomal Recessive?
Knowledge Booster
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Recommended textbooks for you
  • BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
    Biology
    ISBN:9781305967359
    Author:STARR
    Publisher:CENGAGE L
    Human Biology (MindTap Course List)
    Biology
    ISBN:9781305112100
    Author:Cecie Starr, Beverly McMillan
    Publisher:Cengage Learning
  • BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
    Biology
    ISBN:9781305967359
    Author:STARR
    Publisher:CENGAGE L
    Human Biology (MindTap Course List)
    Biology
    ISBN:9781305112100
    Author:Cecie Starr, Beverly McMillan
    Publisher:Cengage Learning
    How to solve genetics probability problems; Author: Shomu's Biology;https://www.youtube.com/watch?v=R0yjfb1ooUs;License: Standard YouTube License, CC-BY
    Beyond Mendelian Genetics: Complex Patterns of Inheritance; Author: Professor Dave Explains;https://www.youtube.com/watch?v=-EmvmBuK-B8;License: Standard YouTube License, CC-BY