USMLE Cert USMLE United States Medical Licensing Examination Online Training
USMLE Cert USMLE Online Training
The questions for USMLE were last updated at Nov 19,2024.
- Exam Code: USMLE
- Exam Name: United States Medical Licensing Examination
- Certification Provider: USMLE Cert
- Latest update: Nov 19,2024
Question #21
Which of the following is the mRNA start codon in most cases?
- A . UAA
- B . AGU
- C . AUG
- D . UGA
Correct Answer: C
Question #22
Which of the types of RNA is the smallest?
- A . mRNA
- B . tRNA
- C . rRNA
Correct Answer: B
Question #23
Which of the following is not considered a pyrimidine?
- A . C
- B . T
- C . U
- D . G
Correct Answer: D
Question #24
Which of the following is paired correctly?
- A . A-G
- B . C-G
- C . A-U
- D . G-T
Correct Answer: B
Question #25
Which of the following characterizes a Western blot?
- A . Antibody/protein hybridization
- B . DNA/RNA combination
- C . RNA transcription
- D . Polymerase chain reaction
Correct Answer: A
Question #26
Which of the following is the approximate prevalence ratio for cystic fibrosis?
- A . 1: 25,000
- B . 1: 5,000
- C . 1: 2,000
- D . 1: 800
Correct Answer: C
Question #27
Which of the following divisions of cell growth precedes Mitosis in the cell cycle?
- A . G2
- B . G1
- C . S
- D . G0
Correct Answer: A
Question #28
Down syndrome is directly linked to a genetic abnormality of chromosome?
- A . XXII
- B . XXI
- C . XIIX
- D . XV
Correct Answer: B
Question #29
Which of the following is a characteristic of the Hardy-Weinberg law?
- A . Mating between species occurs at a set rate.
- B . Migration is a considerable factor.
- C . Mutation occurs at the locus
- D . Genotype selection does not occur at the locus
Correct Answer: D
Question #30
Which of the following is not a characteristic of Hurler’s syndrome?
- A . Autosomal recessive condition
- B . Associated with delayed mental development
- C . Spasticity
- D . Corneal deficits
Correct Answer: C
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