Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term "having a gene" (e.g., "good genes," "hair colour gene") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles. COUNT 5
QSN1 What do mutations in a gene sequence lead to? ANS1 different variants, known as alleles QSN2 What do alleles do? ANS2 encode slightly different versions of a protein QSN3 What do alleles cause? ANS3 different phenotype traits QSN4 What does "having a gene" or a "good gene" typically refer to? ANS4 having a different allele of the gene QSN5 What causes genes to evolve? ANS5 natural selection or survival of the fittest of the alleles