Mock Test

Exam: BPSC Subject: General Science Topic: Biology

Total Questions: 20

Q1. Which of the following is a key characteristic that often contributes to the invasiveness of a species?

Low reproductive rate High specialization on a particular habitat Generalist diet and habitat requirements Dependence on specific native pollinators
Q2. The diagnostic stage for Babesia microti in humans is:

Oocyst Trophozoite Ring form within erythrocytes Cyst
Q3. What is the main function of the myelin sheath around neurons?

Insulation Nutrient supply Signal amplification Synaptic transmission
Q4. Which of these is a key principle of sustainable development?

Maximizing short-term economic gains regardless of environmental impact Meeting the needs of the present without compromising the ability of future generations to meet their own needs Prioritizing industrial growth over ecological protection Ignoring the impact of human activities on biodiversity
Q5. The theory emphasizes that development is:

Primarily determined by genetics Solely shaped by upbringing A result of continuous interaction between the individual and their environment Static and unchanging after childhood
Q6. A model that aims to capture the underlying biological mechanisms is called a:

Black-box model White-box model Gray-box model Empirical model
Q7. If a genetic disorder is inherited in an autosomal recessive pattern, an affected individual must have:

One copy of the recessive allele Two copies of the dominant allele Two copies of the recessive allele One copy of the dominant allele and one of the recessive
Q8. What is the main function of a plant cell's large central vacuole?

Protein synthesis Waste breakdown Storage of water, nutrients, and waste; maintaining turgor pressure Energy production
Q9. Which of the following is LEAST likely to be a primary driver of genetic erosion in fragmented habitats?

Founder effect Genetic drift Gene flow Inbreeding depression
Q10. The concept of 'boom and bust cycles' in biological control can occur when:

The biological control agent is highly efficient and rapidly depletes its host population, leading to a subsequent decline in the agent's population. The target pest develops resistance to the biological control agent. Environmental conditions become unfavorable for the biological control agent's survival. Non-target organisms consume the biological control agent.
Q11. When evaluating the performance of a classification model in biological data analysis, such as predicting disease status from genomic markers, which metric is most sensitive to an imbalanced class distribution?

Accuracy Precision Recall (Sensitivity) F1-score
Q12. Which histological feature is characteristic of the submucosal glands in the esophagus?

Mucous secretion Serous secretion Mixed seromucous secretion Hormonal secretion
Q13. In BPSC's research on viral evolution, when reconstructing viral transmission networks from sequence data, which phylogenetic method is best suited for analyzing closely related sequences with potential recombination events?

Neighbor-Joining method Maximum Parsimony method Coalescent-based methods (e.g., BEAST) Bayesian inference on a fixed tree topology
Q14. Which of the following is a major threat to biodiversity?

Sustainable resource management Habitat restoration Habitat loss and fragmentation Environmental education
Q15. A population exhibiting a Type III survivorship curve is most likely characterized by:

High juvenile mortality, followed by stable adult survival. Constant mortality rate across all age classes. Low juvenile mortality and high mortality in older age classes. Synchronous reproduction with all offspring produced at once.
Q16. The scientific study of plants is called:

Zoology Geology Botany Anthropology
Q17. Which of the following is a direct benefit that humans derive from biological diversity?

Ecosystem regulation Soil formation Provision of food and medicinal resources Pollination of crops
Q18. The functional unit of the nervous system is the:

Glial cell Synapse Neuron Mitochondrion
Q19. Which part of the cell contains the genetic material (DNA)?

Cytoplasm Cell Membrane Nucleus Mitochondria
Q20. What is the primary advantage of using isobaric tandem mass tags (TMT) for quantitative proteomics compared to isotopic labeling like SILAC?

It allows for analysis of post-translational modifications directly. It enables multiplexing of up to 16 samples in a single LC-MS/MS run. It does not require cell culture. It provides absolute quantification of protein abundance.

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