SCIENCE Q2: Non-Mendelian Genetics L1

• What allele controls blood type A?

  $I^A$
• What allele controls blood type B?

  $I^B$
• What non-mendelian pattern of inheritance leads to both dominant alleles to be expressed together?

  Codominance
• What is the recessive allele in blood types?

  i
• what is the genotype for females?

  xx
• what is the genotype for males?

  xy
• who is more likely to have a Y-linked disorder, males or females?

  males
• what is the genotype of a person whose blood type is O?

  ii
• what is the genotype of hemophilic male?

  $x^hy$
• A woman whose blood type is O marries a man whose blood type is AB. What are the possible blood types of their offspring?

  A and B
• What allele controls blood type O?

  i
• What alleles are dominant in blood types?

  $I^A$and $I^B$
• What phenotype is expressed for this genotype : ii?


  Blood type O
• colorblindness is a recessive sex-linked trait.

  true
• a female with a single allele for colorblindess will not be colorblind.

  true
• in codominance, the allele for blood type A and B are codominant to each other while the allele for O is recessive.

  true
• both traits are expressed in codominance.

  true
• if a female offspring will inherit only one Y-linked allele, then she will only be a carrier.

  false