Sickle cell anemia is a disease of red blood cells in which a genetic mutation in dna leads to a mutation in hemoglobin. a single base change alters the dna sequence ctc to cac which codes for the wrong amino acid. what amino acid is coded for by the normal dna sequence, ctc?

Which describes radioactive decay of a substance

Guinea pig coat color is determined by a single gene. the allele for black coat color is dominant to brown. in a cross between twoblack-haired guinea pigs, 20 offspring are born. if both parents were heterozygous, probability would predict that approximately howmany of the 20 offspring would have brown hair?

Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.