What are the underlying problems associated with sickle cell disease and -thalassemia? Please help
I need an answer as soon as possible please

If assuming tasting ptc as a simple gene trait,what other genotype would you select to put in this missing genotype box that could result in this phenotype

Agene pool: a) is the collection of all the alleles found in a single species b) is the collection of all the alleles found in a single population c) is the collection of all the chromosomes found in a single population d) is the collection of genes in a species that allow the individuals to swim

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?