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The effects of genes can be influenced by the environment through interactions that affect gene expression and phenotype. Factors such as nutrition, stress, exposure to toxins, and social conditions can modify how genes are activated or silenced, a phenomenon known as epigenetics. For instance, certain environmental conditions may trigger or inhibit the expression of specific genes, leading to variations in traits and behaviors among individuals with the same genetic makeup. This interplay highlights the complexity of biological development and the importance of considering both genetic and environmental factors in understanding health and behavior.
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What is a multifactorial trait?
Trait that is controlled by many genes and is also influenced by the environment.
What effects of genes are often altered by the?
Environment
Characteristics are determined by interaction between genes and what?
Characteristics are determined by the interaction between genes and the environment. Genes provide the blueprint for traits, but how they are expressed can be influenced by external factors such as diet, lifestyle, and experiences. This interaction between genes and the environment is known as gene-environment interaction.
What can affect an organism trait?
genes and the environment
Can a persons genes change as they age?
No, a person's genes do not change as they age. However, the way genes are expressed can be influenced by various factors, such as lifestyle, environment, and health conditions, which can impact how genes function over time.
Why are the identical twins different?
Because genes do not account for every trait or characteristic. Some characteristics are influenced by environment.
Is behavior inherited?
Behavior can be influenced by both genetic and environmental factors. While some behaviors can have a genetic component and be inherited, environmental influences also play a significant role in shaping behavior. The interaction between genes and the environment ultimately determines an individual's behavior.
Do males carry gene for spina bifida?
It is not inherited. It seems to be due to the effects of several genes and the environment. This has not been proven.
Is human selfishness and self-obsession a product of evolution?
Partially. Everything human is influenced by evolutionary processes. The genes expressed in the immediate environment.
How much is a person's behavior influenced between heredity and the environment?
A person's behavior is influenced by a combination of heredity and the environment. Research suggests that genetics contribute to about 50% of behavior traits, while the environment, including upbringing and experiences, plays a significant role in shaping behavior. The complex interaction between genes and environment ultimately determines an individual's behavior.
Many of a person's characteristics are determined by an interaction between genes and the environment?
Yes, a person's characteristics are influenced by a combination of their genetic makeup and the environment they are exposed to. While genes provide the biological instructions for development, the environment plays a significant role in how those genes are expressed. This interaction can shape a wide range of traits and behaviors in individuals.
Explain the difference between a polygenic character and a complex character?
A polygenic character is influenced by multiple genes, each contributing in a quantitative manner to the phenotype. A complex character refers to traits influenced not only by genetics but also by environmental factors. While a polygenic character specifically focuses on the contribution of multiple genes, a complex character includes additional influences beyond genetic factors.
