Homeobox (HOX), paired box (PAX), sonic hedgehog (SHH) genes control cell differentiation during development. This means the mutated gene products of these genes (HOX, PAX, SHH) can cause developmental disorder. (True or False)?
Klein-Waardenburg syndrome is a single gene developmental disorder. This condition is perhaps due to a defect in homeotic genes. (True or False)?
Human cells are diploid. In a patient, the alleles (paternal and maternal) coding -globin genes were identical and did not have any point mutations, however expressed only half the levels of the gene product: This scenario could be due to mutations of the globin gene promoter of a single allele. True or False?