What are the environmental factors that affect health?

What are the environmental factors that affect health?

They include:

• Exposure to hazardous substances in the air, water, soil, and food.
• Natural and technological disasters.
• Climate change.
• Occupational hazards.
• The built environment.

What are environmental factors that affect child development?

• The prenatal environment:
• The physical environment.
• The social/cultural environment.
• The learning environment.
• The emotional environment.

What are the factors affecting child health?

Environmental influences are wide-ranging and include infectious agents, toxins such as lead and air pollution, and social factors such as loving interactions with caregivers, socioeconomic resources in the family and community, and peer relationships, segregation, racism, culture, the availability and quality of …

How does the environment affect children’s health and wellbeing?

A child’s body may not be able to break down and get rid of harmful contaminants that enter their body. Health problems from an environmental exposure can take years to develop. Because they are young, children have more time to develop health conditions and diseases than adults who are exposed later in their life.

How does heredity and environment influence child development?

Nurture. From the earliest moments of life, the interaction of heredity and the environment works to shape who children are and who they will become.

What is the influence of heredity on environment?

Today, researchers generally agree that heredity and environment have an interactive influence on intelligence. Many researchers believe that there is a reaction range to IQ, which refers to the limits placed on IQ by heredity. Heredity places an upper and lower limit on the IQ that can be attained by a given person.

Does environment affect intelligence?

Intelligence is also strongly influenced by the environment. Factors related to a child’s home environment and parenting, education and availability of learning resources, and nutrition, among others, all contribute to intelligence.

What is more influential heredity or environment?

What researchers do know is that the interaction between heredity and environment is often the most important factor of all.

How does heredity influence behavior?

The two most basic influences on social behavior are genes (the chemical instructions that people inherit from their parents’ DNA) and the environment (all other, noninherited factors). Contrary to a common misconception, genes do not cause behavioral or personality traits, they only influence them.

What are some environmental factors that can influence gene expression?

Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal’s genes are expressed, which ultimately affects the animal’s phenotype.

What are the hereditary factors?

Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents. The study of heredity in biology is genetics.

What is the law of heredity?

Mendel’s Laws of Heredity are usually stated as: 1) The Law of Segregation: Each inherited trait is defined by a gene pair. 2) The Law of Independent Assortment: Genes for different traits are sorted separately from one another so that the inheritance of one trait is not dependent on the inheritance of another.

What was Mendel’s conclusion?

He concluded that traits were not blended but remained distinct in subsequent generations, which was contrary to scientific opinion at the time. Mendel didn’t know about genes or discover genes, but he did speculate that there were 2 factors for each basic trait and that 1 factor was inherited from each parent.

What are the 4 types of inheritance?

The most common inheritance patterns are: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, multifactorial and mitochondrial inheritance.

What are Mendel’s factors called today?

Mendel’s “factors” are now known to be genes encoded by DNA, and the variations are called alleles. “T” and “t” are alleles of one genetic factor, the one that determines plant size.

What are the patterns that do not follow the simple rules of Mendelian inheritance?

• Incomplete Penetrance. Some genes are incompletely penetrant.
• Sex-limited genes are ones that are inherited by both men and women but are normally only expressed in the phenotype of one of them. The heavy male beard is an example.
• Pleiotropy. A single gene may be responsible for a variety of traits.
• Stuttering Alleles.

What are the four exceptions to Mendelian rules?

These include:

• Multiple alleles. Mendel studied just two alleles of his pea genes, but real populations often have multiple alleles of a given gene.
• Incomplete dominance.
• Codominance.
• Pleiotropy.
• Lethal alleles.
• Sex linkage.

What are the 3 non-Mendelian patterns of inheritance?

Such modes of inheritance are called non-Mendelian inheritance, and they include inheritance of multiple allele traits, traits with codominance or incomplete dominance, and polygenic traits, among others, all of which are described below..

What are examples of non-Mendelian inheritance?

Types

• Incomplete dominance.
• Co-dominance.
• Genetic linkage.
• Multiple alleles.
• Epistasis.
• Sex-linked inheritance.
• Extranuclear inheritance.
• Polygenic traits.

What is the importance of non Mendelian inheritance?

This is called Non-mendelian inheritance and it plays an important role in several disease processes. Non-mendelian inheritance can manifest as incomplete dominance, where offspring do not display traits of either parent but rather, a mix of both.