HELP ME are those correct

DNA markers, or variant non-coding regions of DNA, are DNA polymorphisms that are useful for genetic mapping.
Answer
·     

•     True
  ·          False
  
  A mosaic is an organism with
  Answer
  ·         multiple genotypes within one organism
  ·         multiple alleles within one genotype
  ·         more than one color of fur
  ·         transgenes added to the zygote before developement
           a wt phenotype but a mutated genotype
  
  Genotype causes phenotype.
     
•   No, gentoype just influences phenotype.
        Yes, genotype is the DNA sequence that creates phenotype.
  
  
  A true genetic chimera can be created by
  Answer
  
•          mutating a gene early on in the development of an organism resulting in different alleles being present in the adult

         multiple fertilized eggs or zygotes fusing to form one embryo
         adding a transgene to the genome of an organism during fetal development only
         adding cells of a different species to an adult organism
         adding a transgene to the genome of an animal at any stage in development


The ABO blood group can best be explained by the concept of _______.
       

•   dominant traits

         recessive traits
         allelic heterogeneity
         locus heterogeneity
         vampirism