
A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity.:Glossary The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life. COUNT 5
QSN1 What is a gene? ANS1 a locus (or region) of DNA that encodes a functional RNA or protein product QSN2 What is the basis of inheritance of phenotypic traits? ANS2 The transmission of genes to an organism's offspring QSN3 What influence are most biological traits under? ANS3 polygenes (many different genes) QSN4 What is one instantly visible genetic trait? ANS4 eye colour or number of limbs QSN5 What is one invisible genetic trait? ANS5 blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life