According to Mendelian inheritance, variations in an organism's phenotype (observable physical and behavioral characteristics) are due in part to variations in its genotype (particular set of genes). Each gene specifies a particular trait with different sequence of a gene (alleles) giving rise to different phenotypes. Most eukaryotic organisms (such as the pea plants Mendel worked on) have two alleles for each trait, one inherited from each parent.:20 COUNT 5
QSN1 According to Mendelian inheritance, what is part of the cause of variations in an organism's phenotype? ANS1 variations in its genotype QSN2 What sort of characteristics are described by an organism's phenotype? ANS2 observable physical and behavioral characteristics QSN3 What is a genotype? ANS3 particular set of genes QSN4 What specifies a particular trait with a different sequence of alleles? ANS4 Each gene QSN5 How many alleles do most eukaryotic organisms have for each trait? ANS5 two alleles for each trait