dataset_name: college_biology description: The following are multiple choice questions (with answers) about college biology. fewshot_config: sampler: first_n samples: - question: 'Which of the following represents an accurate statement concerning arthropods? (A) They possess an exoskeleton composed primarily of peptidoglycan. (B) They possess an open circulatory system with a dorsal heart. (C) They are members of a biologically unsuccessful phylum incapable of exploiting diverse habitats and nutrition sources. (D) They lack paired, jointed appendages.' target: Let's think step by step. Peptidoglycan is known to comprise the plasma membrane of most bacteria, rather than the exoskeleton of arthropods, which is made of chitin, which rules out (A). The answer (C) is false because arthropods are a highly successful phylum. Likewise, arthropods have paired, jointed appendages, which rules out (D). The only remaining option is (B), as arthropods have an open circulatory system with a dorsal tubular heart. The answer is (B). - question: 'In a given population, 1 out of every 400 people has a cancer caused by a completely recessive allele, b. Assuming the population is in Hardy-Weinberg equilibrium, which of the following is the expected proportion of individuals who carry the b allele but are not expected to develop the cancer? (A) 1/400 (B) 19/400 (C) 20/400 (D) 38/400' target: "Let's think step by step. According to the Hardy Weinberg Law, $p^2 +\ \ 2 p q + q^2 = 1$, and $p + q = 1$ where $p$ is the frequency of the dominant\ \ allele, $q$ is the frequency of the recessive allele, and $p^2$, $q^2$, and\ \ $2pq$ are the frequencies of dominant homozygous, recessive homozygous, and\ \ heterozygous individuals, respectively. \u200BThe frequency of the recessive\ \ allele (q) is $\\sqrt{\frac{1}{400}} = 0.05$. We have $p = 1 - q = 0.95$.\ \ The frequency of heterozygous individuals is $2pq = 2 \\cdot 0.05 \\cdot 0.95\ \ = 0.095$. The number of heterozygous individuals is equal to the frequency\ \ of heterozygous individuals times the size of the population, or $0.095 *\ \ 400 = 38$. So we end up with 38/400. The answer is (D)." - question: 'According to the pressure-flow model of movement of phloem contents, photosynthate movement from source to sink is driven by (A) an ATP-dependent pressure-flow pump (B) a water-pressure potential gradient (C) transpiration (D) apoplastic diffusion' target: Let's think step by step. It is a gradient in water pressure that induces the movement of phloem content, which refers to answer (B). The mechanism of movement does not rely on metabolism, which rules out (A). Transpiration refers to the exhalation of water vapor through plant stomata, and is also not related, which rules out (C). While the apoplastic pathway is one of two main pathways for water transport in plants, it is not central to the pressure flow model, which rules out (D). The answer is (B). - question: 'Which of the following contain DNA sequences required for the segregation of chromosomes in mitosis and meiosis? (A) Telomeres (B) Centromeres (C) Nucleosomes (D) Spliceosomes' target: Let's think step by step. The genetic material in Telomeres is not used, which rules out (A). Nucleosomes are the repeating subunit that comprises chromatin packed in a cell nucleus, and do not specifically refer to DNA sequences necessary for segregating chromosomes in cell division, which rules out (C). A spliceosome is a large ribonucleoprotein that removes introns from transcribed pre-mRNA rather than governing chromosome segregation. Centromeres are directly responsible for segregating chromosomes in cell division. The answer is (B). - question: 'The presence of homologous structures in two different organisms, such as the humerus in the front limb of a human and a bird, indicates that (A) the human and bird are polyphyletic species (B) a human''s and bird''s evolution is convergent (C) the human and bird belong to a clade (D) the human and bird developed by analogy' target: 'Let''s think step by step. Polyphyletic species are organisms that are grouped due to having similar characteristics but which do not have a common ancestor. This is not the case for humans and birds, which rules out (A). Convergent evolution refers to the indepdendent development of similar features in different species at different periods, which is also not the case for humans and birds, which rules out (B). Analogy refers to the superficial resemblance of structures that have different origins, which is not the case for the human and bird forearms, which rules out (D). Humans and birds do belong to the same clade - a group of organisms composed of a common ancestor. The answer is (C).' tag: mmlu_flan_cot_fewshot_stem include: _mmlu_flan_cot_fewshot_template_yaml task: mmlu_flan_cot_fewshot_college_biology