The pedigree below tracks duchenne Muscular dystrophy (DMD) thought several generations. DMD is an x-linked recessive trait

Name the types of burns one can get and which structures of the integument are damaged

The transport tubes for food coming down the plants are called?

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?