Molecular Detection of Inherited Diseases:
Mendelian and Non-Mendelian Patterns Exams #1 Questions with
Correct Answers
What are the Mendelian patterns of inheritance? - ✔✔Autosomal dominant,
autosomal recessive, and sex-linked inheritance.
What is the significance of pedigree diagrams in genetics? - ✔✔They reveal
transmission patterns of genetic traits within families.
What is an autosomal dominant inheritance pattern? - ✔✔A pattern where only
one copy of a mutated gene is sufficient to cause the disease.
What is an autosomal recessive inheritance pattern? - ✔✔A pattern where two
copies of a mutated gene are required to express the disease phenotype.
What characterizes sex-linked inheritance? - ✔✔Traits that are associated with
genes located on sex chromosomes, often X-linked recessive.
What is loss of heterozygosity (LOH)? - ✔✔A condition where the normal allele is
lost, revealing the mutant allele, often leading to disease.
What is the role of gain-of-function mutations? - ✔✔They usually display a
dominant phenotype.
What is the role of loss-of-function mutations? - ✔✔They usually display a
recessive phenotype.
Mendelian and Non-Mendelian Patterns Exams #1 Questions with
Correct Answers
What are the Mendelian patterns of inheritance? - ✔✔Autosomal dominant,
autosomal recessive, and sex-linked inheritance.
What is the significance of pedigree diagrams in genetics? - ✔✔They reveal
transmission patterns of genetic traits within families.
What is an autosomal dominant inheritance pattern? - ✔✔A pattern where only
one copy of a mutated gene is sufficient to cause the disease.
What is an autosomal recessive inheritance pattern? - ✔✔A pattern where two
copies of a mutated gene are required to express the disease phenotype.
What characterizes sex-linked inheritance? - ✔✔Traits that are associated with
genes located on sex chromosomes, often X-linked recessive.
What is loss of heterozygosity (LOH)? - ✔✔A condition where the normal allele is
lost, revealing the mutant allele, often leading to disease.
What is the role of gain-of-function mutations? - ✔✔They usually display a
dominant phenotype.
What is the role of loss-of-function mutations? - ✔✔They usually display a
recessive phenotype.
