Answers| Already Graded A+| 2026
|Score 100%
Which of the following is not a component of a nucleotide?
Phosphate group
Anti-codon
Ribose sugar
Nitrogen base - correct answers Anti-codon
According to Chargaff's rule of base pairing, adenine pairs with: - correct
answers Thymine
What genes would be screened in a breast cancer panel? - correct answers
HER2, ERBB2, BRCA1
,Next Generation Sequencing uses: - correct answers Short sequence reads
Purines and pyrimidines differ from each other in that: - correct answers
Purines have two rings; pyrimidines have one ring
The purines are:
Cytosine and uracil
Adenine and thymine
Thymine and cytosine
Adenine and guanine - correct answers 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 - correct answers 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 - correct answers 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 - correct answers
Initiation, exponential, plateau
Find the palindrome in this restriction enzyme site: 5'-CTGCAG-3'?
5'-GAC
3'-GAC
, 3'-CTG
5'-GTC - correct answers 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 - correct answers 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