Why are genes so important to life?
Proteins form the structure of our bodies, as well playing an important role in the processes that keep us alive. Genes are made of a chemical called DNA, which is short for 'deoxyribonucleic acid'. The DNA molecule is a double helix: that is, two long, thin strands twisted around each other like a spiral staircase.
In the future, doctors and scientists hope to use our genetic information to diagnose, treat, prevent and cure many illnesses. Genes are instructions, which tell your body how to make all the proteins it needs to survive and grow.
- Genetics is the study of genes, genetic variation, and heredity in living organisms. It is generally considered a field of biology, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.
- What are Genetic Disorders? A genetic disorder is a condition that is caused by an abnormality in an individual's DNA. Abnormalities can be as small as a single-base mutation in just one gene, or they can involve the addition or subtraction of entire chromosomes.
- Genetics and Biology. Biology is a huge subject. However, discoveries in genetics have provided some of the most important unifying themes for the whole of biology, so that now conceptual threads link the subdisciplines. The major thematic thread provided by genetics is literally a thread, the genetic molecule DNA.
Genetics and Biology. Biology is a huge subject. However, discoveries in genetics have provided some of the most important unifying themes for the whole of biology, so that now conceptual threads link the subdisciplines. The major thematic thread provided by genetics is literally a thread, the genetic molecule DNA.
- Genetic engineering, also called genetic modification or genetic manipulation, is the direct manipulation of an organism's genes using biotechnology. A construct is usually created and used to insert this DNA into the host organism.
- The Hardy–Weinberg principle, also known as the Hardy–Weinberg equilibrium, model, theorem, or law, states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences.
- Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world.
Environmental factors also can influence human behavior. Behavioral geneticists work to discover how much of people's behavior is determined by the genetic information they inherited from their parents and how much is caused by their living conditions, learning choices, and other influences from the world around them.
- It is difficult to ascertain whether genetics (“nature”) or the environment (“nurture”) has a stronger influence on behavior. It is generally believed that human behavior is determined by complex interactions of both nature and nurture.
- Behavioral genetics is the study of genetic and environmental influences on behaviors. By examining genetic influence, more information can be gleaned about how the environment operates to affect behavior.
- Genes Versus Environment. Behavior genetics is a field in which variation among individuals is separated into genetic versus environmental components. The most common research methodologies are family studies, twin studies, and adoption studies.
Updated: 16th October 2019