Xeroderma pigmentosum is a human genetic disease caused by
A) elevated levels of cholesterol in the blood.
B) loss of genes controlling the SOS response.
C) mutations that inactivate tumor suppressor genes.
D) failure to produce pigment that protects the skin cells from UV light exposure.
E) defective DNA excision-repair mechanisms.
Correct Answer:
Verified
Q8: A mutation during DNA replication causes a
Q9: Which of the following is NOT mutagenic?
A)
Q10: A transition mutation is one that results
Q11: Thymine dimers are commonly caused by
A) tautomers.
B)
Q12: Base analogs may cause mutations because
A) they
Q14: Dissociation elements (Ds) in plants are examples
Q15: Genetic manipulation in Drosophila may be assisted
Q16: An IS (insertion sequence) element contains
A) a
Q17: A transposon is
A) a mobile genetic element
Q18: Barbara McClintock's contemporaries were hostile to her
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