BIOCHEM UNIT 3: BRS EXAM QUESTIONS AND ANSWERS WITH
COMPLETE SOLUTIONS VERIFIED
What will be the genotype of a person with Barrbodies?
48 XXXX
From who can a person Inherit LHON?
When it comes from the mother
LHON is a mitochondrial diseases, and only mothers pass their mitochondrial DNA to
their offsprings
damage to the DNA caused by UV light (pyrimidine dimers) can be repaired by
Nucleotide excision repair pathway
Why will a male with a X-linked recessive disorder pass it down to his daughter
and not his son?
A daughter will cary the X from his father and a X from his mother= Carrier
A son will carry the Y from his dad and a X from his mother, therefore he won't have an
X chromosome with the defective allele as he inherited the Y instead
A patient with Klinefelter syndrome is a mutation due to
Nondisjunction
The patient is exhibiting the signs of osteogenesis imperfecta, brittle bones, as
exemplified by various mutations in
COMPLETE SOLUTIONS VERIFIED
What will be the genotype of a person with Barrbodies?
48 XXXX
From who can a person Inherit LHON?
When it comes from the mother
LHON is a mitochondrial diseases, and only mothers pass their mitochondrial DNA to
their offsprings
damage to the DNA caused by UV light (pyrimidine dimers) can be repaired by
Nucleotide excision repair pathway
Why will a male with a X-linked recessive disorder pass it down to his daughter
and not his son?
A daughter will cary the X from his father and a X from his mother= Carrier
A son will carry the Y from his dad and a X from his mother, therefore he won't have an
X chromosome with the defective allele as he inherited the Y instead
A patient with Klinefelter syndrome is a mutation due to
Nondisjunction
The patient is exhibiting the signs of osteogenesis imperfecta, brittle bones, as
exemplified by various mutations in
