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en.wikipedia.org/wiki/Introduction_to_genetics

A long molecule that looks like a twisted ladder. It is made of four types of simple units and the ... Traits determined by genes can be modified by the animal's surroundings (environment): for example, the ... Chromosomes all contain DNA made up of four nucleotides, abbreviated C (cytosine), G (guanine), A (adenine), or T ...

en.wikipedia.org/wiki/Gene

A gene a locus (or region) of DNA which is made up of nucleotides and is the molecular unit of ... Most biological traits are under the influence of polygenes ( many different genes) as well as gene–environment interactions. .... In addition to genes, eukaryotic chromosomes contain sequences involved in ensuring that the  ...

www.answers.com/Q/Structures_which_contain_the_genes_for_the_traits

A gene is the basic genetic unit that is used to code for something (proteins, usually). How different genes interact determines things like what you look like, etc.

www.merckmanuals.com/home/fundamentals/genetics/genes-and-chromosomes

A chromosome contains hundreds to thousands of genes. ... Some traits are caused by abnormal genes that are inherited or that are the result of a new mutation. Proteins ... The phenotype is the actual structure and function of a person's body.

geneed.nlm.nih.gov/topic_subtopic.php?tid=15

Find information, videos, and activities about DNA, genes, chromosomes, the building ... DNA is made out of two long, twisted strands that contain complementary ... a tour of a typical human cell, moving from larger to smaller cell structures (i.e., from ... tutorials on DNA, genes, chromosomes, protein, heredity, and traits.

www2.le.ac.uk/projects/vgec/highereducation/topics/dnageneschromosomes

They contain the information our bodies need to make chemicals called proteins. Proteins form the structure of our bodies, as well playing an important role in ...

www.scienceclarified.com/scitech/Genetics/Genes-and-DNA.html

It is composed of DNA (deoxyribonucleic acid), which contains genetic ... Genes determine traits because they function as a code that tells structures in the ...

www.encyclopedia.com/science-and-technology/biology-and-genetics/genetics-and-genetic-engineering/chromosomes

A chromosome is a structure that occurs within cells and that contains the cell's genetic material. ... he assumed that genetic traits were somehow transmitted from parents to ... The job of genes in a DNA molecule, therefore, is to tell cells how to ...

www.nature.com/scitable/topicpage/each-organism-s-traits-are-inherited-from-6524917

Today, most scientists agree that genes correspond to one or more DNA ... into structures called chromosomes, and that somatic cells contain twice as many ...

kidshealth.org/en/kids/what-is-gene.html

Each cell in the human body contains about 25,000 to 35,000 genes. Genes carry the information that determines your traits (say: trates), which ... Genes are found on tiny spaghetti-like structures called chromosomes (say: KRO-moh- somes).