FUVEST (University of São Paulo Entrance Exam) · Chemistry and Biology
Biology
37 practice questions, each with the answer and an explanation.
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All 37 questions
- Which organelle produces most of the ATP in a eukaryotic cell?
- In DNA, which base pairs with adenine?
- What are the main products of photosynthesis?
- Two heterozygous plants (Aa x Aa) are crossed. What phenotype ratio is expected if A is completely dominant?
- What is the result of meiosis in a diploid cell?
- What is the role of ribosomes in the cell?
- In a population in Hardy-Weinberg equilibrium 4% show a recessive trait. What percentage are carriers (heterozygotes)?
- Which substance makes up the cell wall of fungi?
- Which vessels carry oxygen-rich blood from the lungs to the heart?
- Which cells of the pancreas secrete insulin?
- About what fraction of energy usually passes from one trophic level to the next in a food chain?
- Two parents AaBb are crossed (genes on separate chromosomes). What is the probability of an offspring that is A_ bb (dominant for A, recessive for B)?
- What happens to a red blood cell placed in distilled water?
- Which insect transmits the dengue virus to humans in Brazil?
- Which Brazilian biome is a tropical savanna with twisted trees and deep roots adapted to fire?
- Why do bacterial populations often become resistant to an antibiotic?
- Why does an enzyme stop working at a very high temperature?
- DNA with only 15N is grown for two generations in 14N medium. What is the content of the DNA molecules after the second replication?
- Which organisms in the root nodules of legumes make nitrogen usable for plants?
- Which blood type is the universal red cell donor?
- A PCR reaction starts with 4 copies of a DNA template. About how many copies exist after 5 cycles?
- A cross of two heterozygous plants Aa x Aa gives which phenotype ratio with complete dominance?
- Which organelle is the main site of ATP production in aerobic respiration?
- How many haploid cells result from one complete meiosis of a diploid cell?
- Which mosquito transmits dengue, Zika and chikungunya in Brazil?
- Which Brazilian biome is found only in Brazil?
- Which biome has lost the largest share of its original cover in Brazil and is concentrated along the coast?
- A girl has a rare condition although both parents are healthy. What is the most probable mode of inheritance?
- How does a vaccine protect a person?
- What is the correct order of the phases of mitosis?
- Which gas is released as a by-product of photosynthesis?
- Where does the Krebs cycle take place?
- Natural selection acts on which feature of a population?
- Which disease is caused by the protozoan Trypanosoma cruzi and transmitted by triatomine bugs?
- In a food chain, producers hold 20 000 kJ of energy. By the 10% rule, how much reaches the secondary consumers?
- A diploid cell has 2n = 8 chromosomes. How many chromatids does it have in metaphase of mitosis?
- In a population in Hardy-Weinberg equilibrium, the allele a has frequency 0.3. What is the frequency of heterozygotes Aa?
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