Podcast
Play an AI-generated podcast conversation about this lesson
Download our mobile app to listen on the go
Get App
Questions and Answers
What is a multifactorial trait?
What is a multifactorial trait?
- A trait influenced only by environmental factors
- A trait influenced by both genetic and environmental factors (correct)
- A trait determined solely by genetic factors
- A trait influenced by a single gene
What is heritability in the context of multifactorial inheritance?
What is heritability in the context of multifactorial inheritance?
- The likelihood of a trait being passed from one generation to the next
- The measure of how common a trait is in a population
- The proportion of individual differences in a trait due to genetic differences (correct)
- The total influence of environmental factors on a trait
Which gene is involved in familial hypercholesterolemia?
Which gene is involved in familial hypercholesterolemia?
- Hemoglobin gene
- LDL receptor gene (correct)
- Thyroid receptor gene
- Insulin receptor gene
What is the role of twin and adoption studies in studying multifactorial traits?
What is the role of twin and adoption studies in studying multifactorial traits?
Signup and view all the answers
What do many multifactorial traits show in terms of distribution?
What do many multifactorial traits show in terms of distribution?
Signup and view all the answers
Flashcards are hidden until you start studying
Study Notes
Multifactorial Traits
- A multifactorial trait is a characteristic influenced by both genetic and environmental factors, resulting in a complex interplay between multiple genes and environmental influences.
Heritability
- Heritability, in the context of multifactorial inheritance, refers to the proportion of variation in a trait that can be attributed to genetic differences between individuals.
Familial Hypercholesterolemia
- Familial hypercholesterolemia is a multifactorial trait caused by mutations in the LDLR gene, leading to extremely high levels of low-density lipoprotein (LDL) cholesterol.
Twin and Adoption Studies
- Twin and adoption studies are used to study multifactorial traits, allowing researchers to distinguish between the effects of genetics and environment on trait variation.
Distribution of Multifactorial Traits
- Many multifactorial traits exhibit a continuous distribution, following a bell-shaped curve, indicating that the majority of individuals will have average values, while fewer individuals will have extreme values.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
