Genetics Fundamentals Quiz

What is the primary focus of genetics as a scientific study?

• The study of human anatomy

• The study of chemical reactions

• The study of ecosystems

• The study of heredity

What are chromosomes primarily composed of?

• Long strands of DNA

• Lipids

• Carbohydrates

• Proteins

What term is used to describe different forms of a gene?

• Chromosomes

• Nucleotides

• Alleles

• Proteins

Which allele is most commonly found in nature?

• Mutant allele

• Dominant allele

• Wild type allele

• Recessive allele

What is the term for an allele that is expressed even if only one copy is present?

• Recessive

• Wild type

• Dominant

• Mutant

What is the term for the physical expression of a genotype?

• Chromosome

• Genotype

• Phenotype

• Allele

What does a homozygous genotype consist of?

• One dominant and one recessive allele

• Two identical alleles

• Two different alleles

• No alleles

What does the F1 generation refer to in genetic studies?

• The second generation of offspring

• The first generation of offspring from a parental cross

• The generation with mutant alleles

• The parental generation

Which of the following is an example of a recessive trait?

• Brown eyes

• Normal height

• Blue eyes

• Sickle cell anemia

What is the result of a non-functioning fgfr3 gene?

• Normal height

• Brown eyes

• Blue eyes

• Dwarfism