where are genes located what are their functions
Gene
In biology , a gene is a sequence of DNA or RNA that codes for a molecule that has a function . During gene expression , the DNA is first copied into RNA . The RNA can be directly functional or be the intermediate template for a protein that performs a function . The transmission of genes to an organism 's offspring is the basis of the inheritance of phenotypic traits . These genes make up different DNA sequences called genotypes . Genotypes along with environmental and developmental factors determine what the phenotypes will be . Most biological traits are under the influence of polygenes ( many different genes ) as well as gene -- environment interactions . Some genetic traits are instantly visible , such as eye color or number of limbs , and some are not , such as blood type , risk for specific diseases , or the thousands of basic biochemical processes that constitute life . 
In biology , a gene is a sequence of DNA or RNA that codes for a molecule that has a function . During gene expression , the DNA is first copied into RNA . The RNA can be directly functional or be the intermediate template for a protein that performs a function . The transmission of genes to an organism 's offspring is the basis of the inheritance of phenotypic traits . These genes make up different DNA sequences called genotypes . Genotypes along with environmental and developmental factors determine what the phenotypes will be . Most biological traits are under the influence of polygenes ( many different genes ) as well as gene -- environment interactions . Some genetic traits are instantly visible , such as eye color or number of limbs , and some are not , such as blood type , risk for specific diseases , or the thousands of basic biochemical processes that constitute life .
In biology , a gene is a sequence of DNA or RNA that codes for a molecule that has a function .The transmission of genes to an organism 's offspring is the basis of the inheritance of phenotypic traits . These genes make up different DNA sequences called genotypes . Most biological traits are under the influence of polygenes ( many different genes ) as well as gene -- environment interactions .
In biology , a gene is a sequence of DNA or RNA that codes for a molecule that has a function . The transmission of genes to an organism 's offspring is the basis of the inheritance of phenotypic traits . These genes make up different DNA sequences called genotypes . Most biological traits are under the influence of polygenes ( many different genes ) as well as gene -- environment interactions .