#1
Which of the following is a type of genetic mutation?
Point mutation
ExplanationMutation affecting a single nucleotide.
#2
What is a point mutation?
A mutation that affects a single nucleotide
ExplanationMutation affecting a single nucleotide.
#3
Which of the following is NOT a potential cause of mutations?
Healthy diet
ExplanationHealthy diet doesn't induce mutations.
#4
Which of the following is an example of a chromosomal mutation?
Deletion
ExplanationLoss of a segment of a chromosome.
#5
What is the impact of a frameshift mutation?
It shifts the reading frame of the genetic code
ExplanationShifts the reading frame, often leading to significant changes.
#6
What is the term for a mutation that occurs in a somatic cell?
Somatic mutation
ExplanationMutation occurring in non-reproductive cells.
#7
Which of the following is NOT a potential consequence of genetic mutations?
Improved adaptation to the environment
ExplanationMutation-driven adaptation typically involves drawbacks.
#8
What is the term for a mutation that occurs due to exposure to external factors such as radiation or chemicals?
Induced mutation
ExplanationMutation caused by external agents.
#9
Which of the following is NOT a type of chromosomal mutation?
Substitution
ExplanationSubstitution doesn't involve chromosomal changes.
#10
Which of the following genetic mutations is associated with sickle cell anemia?
Substitution mutation
ExplanationSingle nucleotide change causing abnormal hemoglobin.
#11
What is the term for a mutation that occurs spontaneously due to errors in DNA replication?
Spontaneous mutation
ExplanationOccurs naturally without external influence.
#12
Which of the following genetic mutations is associated with Huntington's disease?
Trinucleotide repeat expansion
ExplanationRepeating sequence leading to neurodegeneration.
#13
What is the term for a mutation that changes a single nucleotide in the DNA sequence but does not change the amino acid sequence of the resulting protein?
Silent mutation
ExplanationNucleotide change without impacting protein sequence.
#14
What is the term for a mutation that changes the amino acid sequence of a protein?
Missense mutation
ExplanationAmino acid substitution affecting protein function.
#15
Which of the following genetic mutations is associated with cystic fibrosis?
Deletion mutation
ExplanationLoss of nucleotides leading to defective protein.