Question

27. Beneficial mutations can: Select all that apply. protect from disease. permit an organism to become adapted to its environment. None of the other answer options is correct. never be reversed. 28. With regard to alleles that encode different forms of (beta)-globin in humans and their relation to malaria, which answer choices are examples of phenotypes? Select all that apply. sickle-cell anemia A4, AS, SS susceptibility to malaria altele C sickled red blood cells 29. An individual is heterozygous for a gene if: his or her father is heterozygous for the gene. O he or she developed from a sperm and egg that carried different alleles. Ohe or she developed from a sperm and egg that carried the same allele. only one allele is present in the population. O his or her mother is heterozygous for the gene. 30. Which type of mutation is thought to be the least common? somatic mutations beneficial mutations O harmful mutations germ-line mutations neutral mutations 1. Sites in the genome that are more susceptible to mutations than others are called risk factors mutation spots genes noncoding DNA. hotspots 2. Beneficial mutations are those that increase survival or reproduction in the prevailing environment. false