Lecture notes
Chapter 20 - Patterns of Genetic Inheritance
- Module
- Institution
- Book
This file partially covers the 20th chapter of the textbook Human Biology by Sylvia Mader for the Biology course () in UoS
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
TEST BANK FOR HUMAN BIOLOGY, 12TH EDITION– SYLVIA MADER
-
Chapter 21 - DNA Biology and Technology
-
Chapter 18 - Patterns of Chromosome Inheritance
Seller
Follow
williamboutros
Content preview
Chapter 7 - Patterns of Genetic Inheritance - Part 2Preimplantation Genetic Diagnosis
If prospective parents carry an allele for a genetic disorder, they may seek assurance that
their offspring will be free of the disorder
Following in vitro fertilization (IVF), the zygote divides
When the embryo has 8 cells, 1 may be removed for genetic testing
Only embryos that will not have the genetic disorders of interest are placed in the uterus to
continue developing
1
,2
, Polygenic Inheritance
Polygenic traits: 2 or more sets of alleles govern 1 trait
Each dominant allele codes for a product, so these effects are additive.
This results in a continuous variation of phenotypes.
Environmental effects cause intervening phenotypes.
e.g., skin color ranges from very dark to very light
e.g., height varies among individual humans
Multifactorial trait: A polygenic trait that in addition to genetics are particularly influenced
by the environment
3
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller williamboutros. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.77. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
83637 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now