Objective Questions
All objective questions for BIO 201
Questions (285)
| # | Question | Topic | Actions |
|---|---|---|---|
| 201 |
In parallel diagnostic biomarker testing, what is 'analytical sensitivity'?
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| 202 |
What is the primary function of blocking buffers (e.g., BSA or non-fat milk) in…
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| 203 |
Which diagnostic parameter remains mathematically independent of disease preval…
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| 204 |
In parallel mass spectrometry diagnostic workflows, why are stable isotope-labe…
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| 205 |
During parallel execution of diagnostic qPCR, what does a high $C_q$ (quantific…
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| 206 |
In a parallel study design evaluating diagnostic devices, what is 'index test b…
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| 207 |
In diagnostic validation, what is the main purpose of establishing a Levey-Jenn…
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| 208 |
In parallel cell viability diagnostic assays (e.g., MTT assay), what biological…
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| 209 |
When conducting a parallel diagnostic comparative study, what does the 'STARD' …
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| 210 |
What is Intention-to-Treat (ITT) analysis?
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| 211 |
In parallel diagnostic studies, what is baseline comparability?
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| 212 |
What is a false positive result?
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| 213 |
What is a false negative result?
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| 214 |
Which plot displays assay precision across concentration ranges?
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| 215 |
What does the Coefficient of Variation (%CV) express?
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| 216 |
What is analytical specificity?
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| 217 |
What is analytical sensitivity?
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| 218 |
Which study design avoids sequence/period effects inherent to crossover trials?
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| 219 |
What is the primary drawback of parallel study designs compared to crossover de…
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| 220 |
What is a matrix effect in diagnostic assays?
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| 221 |
How can researchers mitigate matrix effects in biological assays?
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| 222 |
What is the purpose of a Bland-Altman plot?
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| 223 |
What statistical test is commonly used to compare continuous diagnostic outputs…
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| 224 |
Which statistical test compares paired categorical outcomes from the same diagn…
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| 225 |
In parallel diagnostic studies, what does 'loss to follow-up' cause?
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| 226 |
What is the Limit of Quantitation (LOQ)?
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| 227 |
What does a high signal-to-noise ratio (S/N) indicate in biological assays?
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| 228 |
What is cross-reactivity in diagnostic antibody assays?
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| 229 |
Why is standard curve calibration performed in quantitative diagnostic assays?
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| 230 |
What is an index test in diagnostic accuracy parallel studies?
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| 231 |
What is spectrum bias in diagnostic testing research?
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| 232 |
Which of the following statements correctly defines an allelic gene interaction?
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| 233 |
When crossing two heterozygous snapdragons (Rr) exhibiting incomplete dominance…
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| 234 |
A child is born with blood group O (IOIO). Which of the following parental geno…
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| 235 |
Rh incompatibility leading to Hemolytic Disease of the Newborn (HDN) typically …
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| 236 |
Which statement accurately describes the inheritance and medical relevance of t…
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| 237 |
Which of the following phenomena is classified as a non-allelic (intergenic) ge…
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| 238 |
Why are individuals with blood type O considered universal donors for red blood…
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| 239 |
When crossing two pink-flowered snapdragons (Rr x Rr) exhibiting incomplete dom…
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| 240 |
Which phenotype demonstrates codominance in humans?
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| 241 |
In mice, the mutant yellow coat allele (Ay) exhibits dual behavior. How does Ay…
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| 242 |
Which human disease is caused by a dominant lethal allele?
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| 243 |
Where do allelic gene interactions occur within the genome?
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| 244 |
Which type of gene interaction is also known as intergenic interaction?
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| 245 |
What phenotypic ratio is produced in the F2 generation of a classic Mendel mono…
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| 246 |
In pea plants, tallness (T) is completely dominant over shortness (t). What phe…
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| 247 |
Why can dominant lethal alleles like Huntington's disease persist in human popu…
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| 248 |
Which condition is a recognized example of a recessive lethal allele in humans?
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| 249 |
How many major alleles exist in the human population for the ABO blood group ge…
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| 250 |
Which blood group allele is recessive to both IA and IB?
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| 251 |
An individual with blood type O possesses which of the following genotypes?
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| 252 |
What antigen(s) are present on the surface of erythrocytes in an individual wit…
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| 253 |
What antibody or antibodies are found in the blood plasma of a Type A individua…
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| 254 |
Which blood type lacks both Anti-A and Anti-B plasma antibodies?
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| 255 |
Why is blood Type O considered the universal donor?
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| 256 |
Why is blood Type AB considered the universal recipient?
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| 257 |
The primary gene determining human Rh factor is:
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| 258 |
Which genotype designates an Rh-negative individual?
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| 259 |
Rh-positive status is dominant over Rh-negative. What are the possible genotype…
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| 260 |
Unlike ABO antibodies, when do Anti-Rh (Anti-D) antibodies appear in an Rh-nega…
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| 261 |
Haemolytic Disease of the Newborn (HDN) is most likely to occur under which con…
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| 262 |
In HDN, what clinical manifestations may be seen in the fetus or newborn?
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| 263 |
How does RhoGAM prevent Haemolytic Disease of the Newborn in subsequent pregnan…
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| 264 |
The MN blood group system is governed by alleles LM and LN at the LMN locus. Wh…
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| 265 |
What phenotype is expressed by an individual with genotype LNLN?
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| 266 |
Why is the MN blood group system generally NOT a major concern in blood transfu…
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| 267 |
If both parents have Type O blood, which blood group is IMPOSSIBLE for their bi…
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| 268 |
Which example represents non-allelic (intergenic) gene interaction?
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| 269 |
A cross between two heterozygotes exhibiting codominance yields what genotypic …
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| 270 |
In the ABO blood system, how many distinct phenotypic blood groups can be forme…
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| 271 |
Which blood genotypes both result in Type A blood phenotype?
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| 272 |
Which component on red blood cells determines an individual's specific ABO bloo…
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| 273 |
If a child has Type MN blood, what are the possible genotypes of the parents?
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| 274 |
When fetal blood enters maternal circulation during delivery, an Rh- mother may…
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| 275 |
What is the coat color phenotype of a mouse with genotype AyA?
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| 276 |
If a man with genotype IAIO and a woman with genotype IBIO have children, what …
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| 277 |
Which term describes a gene interaction where one gene masks or modifies the ph…
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| 278 |
What result occurs when an individual receives a blood transfusion containing a…
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| 279 |
An Rh-positive patient with genotype Dd requires a blood transfusion. Which blo…
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| 280 |
In medico-legal paternity cases, blood group testing is primarily utilized to:
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| 281 |
A mother with blood type N (LNLN) gives birth to a child with blood type MN (LM…
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| 282 |
What antigen is encoded by the IO allele in the ABO blood group system?
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| 283 |
Why does a cross between two pink snapdragons not produce 100% pink offspring?
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| 284 |
Under what circumstance will an Rh-negative mother NOT develop HDN complication…
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| 285 |
Which classical Mendelian law is demonstrated when alleles of a single gene sep…
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