Biology: How Life Works
3rd Edition
ISBN: 9781319017637
Author: James Morris, Daniel Hartl, Andrew Knoll, Melissa Michael, Robert Lue, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: Macmillan Higher Education
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Chapter 17.3, Problem 12SAQ
Summary Introduction
Studies that conducted in fraternal and identical twins are referred as twin studies. The main goal of twin studies is to demonstrate the significance of genetic and environmental influences of
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can you please explain to me how twin studies can reveal whether or not the appearance of a trait is strongly influenced by genetics.
Two genes can interact in which several ways to determine a single trait?
Briefly describe how twin studies can reveal whether or not the appearance of a trait is strongly influenced by genetics.
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- Explain how you would go about determining therelative importance of genes and the environment forvariation in risk for a complex trait such as type 2 diabetes.arrow_forwardExplain how a comparison of concordance in monozygotic and dizygotic twins can be used to determine the extent to which the expression of a trait is influenced by genes or by environmental factors.arrow_forwardin considering the interaction of multiple genes involved in complex traits and interaction with the environmental factors what does the organisms genotype represent? What does the phenotype represent? What does the environment have to do with it?arrow_forward
- Describe the roles genetics and the environment play in determiningphenotypesarrow_forwardDo males and females show equal chances of inheriting tge trait? Why or why not?arrow_forwardIn the context of genetic influence on individual differences, the degree of genetic influence typically a. increases from infancy through childhood, and then decreases from childhood through adulthood. b. decreases from infancy through adulthood. c. remains stable from infancy through adulthood. d. increases from infancy through adulthood.arrow_forward
- What are the importance of pedigree build in genetic counselling? How do genetic counselors help families?arrow_forwardWhat is a gene interaction in which the effects of an allele at one gene hide the effects of alleles at another gene?arrow_forwarda) What is one-way genetic background can affect phenotypic expression?arrow_forward
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