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(MB) ASCP Practice Exam Questions and Complete Solutions Graded A+
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(MB) ASCP Practice Exam Questions and Complete Solutions Graded A+
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(MB) ASCP PracticeExam Questions
and Complete
Solutions Graded
A+
Denning [Date] [Course title]
,Which of the following is not a component of a nucleotide?
Phosphate group
Anti-codon
Ribose sugar
Nitrogen base - Answer: Anti-codon
According to Chargaff's rule of base pairing, adenine pairs with: - Answer: Thymine
What genes would be screened in a breast cancer panel? - Answer: HER2, ERBB2, BRCA1
Next Generation Sequencing uses: - Answer: Short sequence reads
Purines and pyrimidines differ from each other in that: - Answer: Purines have two rings; pyrimidines
have one ring
The purines are:
Cytosine and uracil
Adenine and thymine
Thymine and cytosine
Adenine and guanine - Answer: Adenine and guanine
What is the rate of mutation per round of DNA replication?
1 in 1,000 base pairs
1 in 10,000 base pairs
1 in 1,000,000 base pairs
1 in 1,000,000,000 base pairs - Answer: 1 in 1,000,000,000 base pairs
The rate of DNA migration through an agarose gel during electrophoresis does not depend on which of
the following factors?
,Net charge of the molecule
Size of the molecule
Shape of the molecule
Nucleotide sequence of the molecule - Answer: Nucleotide sequence of the molecule
What are the phases in a qPCR Amplification Plot?
Initiation, exponential, plateau
Baseline, exponential, plateau
Baseline, threshold, exponential, plateau
Baseline, initiation, threshold, exponential, plateau - Answer: Initiation, exponential, plateau
Find the palindrome in this restriction enzyme site: 5'-CTGCAG-3'?
5'-GAC
3'-GAC
3'-CTG
5'-GTC - Answer: 3'-GAC
A patient with impaired judgment, personality changes, signs of abnormal body movements and
depression comes to the physician's office for a follow-up visit. The physician suspects a single-gene
disorder may be the cause of those clinical manifestations. A blood specimen was then sent to your
clinical laboratory for mutation screening in the Huntington gene. Testing with standard PCR indicates
that patient has Huntington Disease, HD. Which of the following would be consistent with this
diagnosis?
25 CAG repeats in the Huntington gene
85 CAG repeats in the Huntington gene
25 CGA repeats in the Huntington gene
85 CGA repeats in the Huntington gene - Answer: 85 CAG repeats in the Huntington gene
Which two HPV types are responsible for most cases of cervical cancer?
, 16 and 18
31 and 59
16 and 58
44 and 59 - Answer: 16 and 18
Replication forks, known as origins of DNA replication, are created by this enzyme:
Ligase
Taq Polymerase
Primase
Helicase - Answer: Helicase
Mutation in what gene is associated with Fragile X syndrome? - Answer: FMR1
Mantle cell lymphoma (MCL) is caused by what translocation? - Answer: t(11;14)
This polymerase is involved in "initiation of DNA replication and has primase activity": - Answer: Pol α
Its discovery shed light on why there is simultaneous, though not continuous, synthesis of DNA on both
leading and lagging strands of DNA:
Klenow fragment of DNA polymerase
Okazaki fragments
Sanger fragments
RNA fragments - Answer: Okazaki fragments
What gene is measured following treatment with imatinib (Gleevec)?
FLT3
BCR/Abl
Jak2
MAPK - Answer: BCR/Abl
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