Mutation - Quiz No. 6

What is the effect of a point mutation?

• a. Changes multiple nucleotides

• d. Causes complete gene deletion

• b. Alters the entire DNA sequence

• c. Affects only one or a few nucleotides

Which genetic disorder is caused by a missing piece of chromosome 5?

• d. Turner syndrome

• c. Cri-du-chat syndrome

• b. Edward syndrome

• a. Down syndrome

What is the phenotype of an organism?

• a. The genetic makeup

• b. The physical characteristics

• d. The number of chromosomes

• c. The type of mutation

What is the probability of offspring inheriting a mutation if one parent is a carrier and the other is unaffected?

• 25%
• 75%
• 50%
• 10%

What is the main function of a Punnett square?

• d. Identify chromosomal abnormalities

• c. Analyze DNA replication errors

• b. Predict offspring genotypes and phenotypes

• a. Determine genetic disorders

What is the complementary base pair of adenine in DNA?

• d. Thymine

• c. Guanine

• b. Cytosine

• a. Adenine

Which genetic disorder is caused by an extra copy of chromosome 21?

• a. Down syndrome

• b. Turner syndrome

• c. Cri-du-chat syndrome

• d. Edward syndrome

Which genetic disorder is caused by an extra copy of chromosome 18?

• a. Down syndrome

• b. Turner syndrome

• c. Cri-du-chat syndrome

• d. Edward syndrome

Which genetic disorder is caused by an extra copy of chromosome 13?

• a. Down syndrome

• b. Turner syndrome

• c. Patau syndrome

• d. Edward syndrome

What is the term for a mutation that results in the loss of a nucleotide?

• a. Insertion

• b. Deletion

• c. Substitution

• d. Duplication