Can environmental factors influence genetics?
The expression of genes in an organism can be influenced by the environment, including the external world in which the organism is located or develops, as well as the organism’s internal world, which includes such factors as its hormones and metabolism.
What is the difference between environmental and genetic factors?
Your genes hold the basic instructions for your body to grow and function, but they are far from the only thing controlling your traits. Most traits are shaped both by a person’s genes and by environmental factors. Environmental factors include everything outside of DNA that affects your traits.
How does environment influences the growth and development of a person?
The environment can be a powerful modifier of the normal development and behavior of humans. Environmental effects on development include reduction in IQ from exposure to heavy metals such as lead, changes in puberty from exposure to endocrine disrupting chemicals, birth defects, and fetal loss.
How and why genetic variations and environmental factors are important in the survival of a species?
Variation allows some individuals within a population to adapt to the changing environment. Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation.
Why are environmental factors important to child growth and development?
An enriching and stimulating home environment fosters healthy growth and brain development by providing a child with love, emotional support, and opportunities for learning and exploration. In families where only one parent is present, there are often fewer economic and emotional resources. Environment and Behavior.
Which is an example of environmental influence on development?
One example of an environmental influence on development is; a person’s mother was exposed to German measles and the person is blind. A baby is most likely to have fetal alcohol syndrome; when he/she has been exposed to alcohol.
How do genetics and environment influence the similarities and differences within twins?
Any differences between identical twins is expected to be due to environmental factors since they are genetically identical, whereas fraternal twins only share half of their genes on average. When a genetic influence is dominant, the identical twins would have more trait similarity than fraternal twins.
What is the relationship between adaptation and offspring production?
Understanding: Individuals that are better adapted tend to survive and produce more offspring while the less well adapted tend to die or produce fewer offspring. Because populations produce more offspring than the environment can support., individuals often must compete for resources required for survival and reproduction.
What is the relationship between the environment and genetic factors?
Theo- that are interdependent. Indeed, environment can affect development by altering and environments in shaping behavior. In fact, although genetic and environmental behavior then either factor alone (see Moffitt, Caspi, & Rutter, 2006; Rutter, 2007). It dependencies (e.g., Krueger et al., 2002). However, recent research demonstrates
How do environmental factors affect phenotypic traits?
The greatest of environmental factors on phenotype is on phenotypic plasticity, phenotypes that may change due to changes in the environment; ex: snowshoe hare have brown-colored fur in summer/spring and white fur in winter. Environmental factors may affect gene expression which may result in normal/abnormal phenotypic changes.
What are the consequences of populations producing more offspring than the environment?
Explain the consequences of populations producing more offspring than the environment can support. Understanding: Species tend to produce more offspring than the environment can support. Overproduction of offspring can lead to competition (between offspring) for limited resources (such as water, space or food) in the habitat.